Proficiency Level of Leadership Competences on the Initial Training Course for Firefighters—A Case Study of Lisbon Fire Service

Leadership competence development in the Portuguese fire services is an area to be explored and one where we must obtain more profound knowledge. The research seeks to identify the role of the initial training course for professional firefighters in the proficiency level of leadership competences in trainees at the Lisbon Fire Service. To achieve the objectives of the investigation, the researchers adopted a quantitative method with a longitudinal case study research design, using a questionnaire of leadership competences, applied to 126 trainees of the Initial Training Course for professional firefighters from Lisbon Fire Service (case study), at three different moments during a one-year training period (longitudinal study). From the obtained results, it was concluded that the leadership competences with the highest level of proficiency at the end of the course are problem solving, participatory leadership, delegative leadership, conflict management, influence by example, task orientation, decision making, vision and proactivity.


Leadership in Firefighters
The development of leadership skills is a topic that has been studied over the last few years, with some preponderance in some civil protection agents, such as the armed forces and security forces. This theme, having not yet been approached with the desired depth in Portugal, in the field of firefighters, whether professionals or volunteers, is presented as fundamental, considering the three major modalities of training, as follows: initial career entry training, ongoing training, and training for career progression. In the context of forest fires, commanders with the best leadership competences increase their performance in protecting people and property, by being more capable of taking decisions in complex environments, in a short period of time and with limited information [1].
Competences are intrinsic characteristics that reflect the ability and capacity to perform an activity, regardless of the situation or environment [2], and they have a causal relationship to effective or superior performance, in each function or situation, within pre-defined criteria [3]. This set of behaviors are related to each other, which direct the individual to a certain action, and which defines their suitability to a specific situation [4], validated by the existing criteria to ensure that it is not merely a question of casuistic behavior cases [5]. Competences can be categorized into transversal or differentiating [3], and where the inputs that the individual brings into the organization and what is extracted from this competence, in terms of output, are considered [6].
Different studies have advocated the existence of structural, common, and permanent leadership competences, as well as specific competence, whose training and development Table 1. Leadership competences management model [80,84].

Domain of Competence Competence Type Competence
Personal Cognitive Courage; Self-confidence; Self-control; Flexibility and adaptability; Determination and perseverance; Optimism and enthusiasm; Consideration; Transparency; Proactivity.

Vocational Training Program
In learning development, there are the following two factors to consider: individual learning and organizational learning. Individual learning presents a set of characteristics considered as main (it is an active process, driven by objectives, with constructive and cumulative capacity and which must allow a diagnostic and reflective assessment in accordance with the defined purposes [85]). The relationship between the two clearly demonstrates the influence that the former exerts on the latter, namely in its development through models that start from the processes of the learning domain, applicable to the individual, and directly transforms them into the domain of organizational learning [86][87][88][89].
Organizational learning takes place at the following three different levels: at the organizational level, at the group level and at the individual level. These different levels provide a division in the fields of work for organizational psychologists (organizational and group level) and educational psychologists (individual level). Being opposite fields, they are mutually necessary and not mutually exclusive. Individual learning, to be effective, needs support and organizational context, while organizational learning depends on the effectiveness of individual learning [90].
As there are several currents of thought, it is important to list the main theories of learning, as follows: the behaviorist theories, which include authors such as Pavlov, Watson, Thorndike and Skinner [91][92][93][94], who, having different perspectives on the behaviors studied, contribute to the development of the behavioral approach and frame the learning as a form of conditioning, resulting from the association of stimuli and reactions that, given the surrounding context, can be reinforced or eliminated, according to the results obtained; the cognitive theories, where the focus is on the learning process at the expense of the product obtained, these theories being divided into form or configuration theory and field theory, giving the first emphasis to the structure of learning and the way in which it is organized, as well as the relationships that result from this interaction [95][96][97][98], and on the other hand, field theory, in which the attribution of meaning is an elementary condition, resulting from the change in the individual's knowledge structure, as well as the way in which he/she perceives the context, chooses and organizes objects and events [99][100][101][102][103][104]; and the biological theory of self-production, initially enunciated by Maturana and Varela [105], based on studies by Bateson, Bertalanffy and Heiz von Foerster [106][107][108], which postulate the non-existence of separation between who produces and what is produced, this being a set of processes created by the individual who maintains the organism's survival, constituting its knowledge and adapting to external disturbances [109].
The existence of different theories in the learning approach leads to a reflection on more formal teaching models, placing the process of acquisition and the construction and restructuring of knowledge under the control of the learning subject, thus, becoming an actor, decision maker and conductor of their knowledge and its transformation, which is a process of interaction and mutual influence in the construction and development of the individual and the world around them.
As leadership theories evolved, so did learning/development theories, presented in Table 2, developing the belief that the ability to be a good leader can be learned, even though some people have a greater innate ability to lead. Table 2. General theories of leadership skills development [110].

Behavioural
Learning is an experience through conditioning, reinforcement, or repetition that leads to a permanent change in behaviour; learning is active and not passive. The approach to considering these theories in competence development is one of learning outcomes; the knowledge, behaviours, attitudes, and values that a trainee will be able to demonstrate in the workplace upon completion of the learning process. The classic work on learning outcomes is that of Bloom et al. [111], who identified the following three learning domains: cognitive (mental skills, knowledge); affective (attitudes, emotions); and psychomotor (capacities or aptitudes).
The greatest emphasis on the development of leadership skills is based on constructivist and transformational learning theories, encouraging the trainee to critically reflect and build new knowledge. According to Stone [112], there are three principles of the constructivist model of learning, which are as follows: understanding, which comes from interacting with the environment; cognitive conflict, which is the stimulus to learn and determines the nature of what is learned; knowledge, which evolves through social negotiation with the learning environment.
Jordan, Carlile and Stack [113] mentioned that "inviting leaders to become aware of their prejudices and perceptions, empowers them to create new knowledge, to become more self-aware and consequently change behaviors" [113].
They also stated that learning is not simply an activity carried out as part of a training program, but a lifelong process of investigation, practice, and reflection. This premise is increasingly associated with investigations that have been carried out in the field of leadership, in which it is currently a process of learning through experience, whether structured or not, formal or informal, inside or outside the formal learning environment [113]. Kolb's learning cycle is one of the main theories that defines experiential learning [114], as illustrated in Figure 1. In this theory, one of the critical elements is the ability to get trainees to reflect on the learning objectives and their transfer to the workplace.
Current learning is based on the centrality of the adult, integrated both in a system that provides training, facilitating self-learning, and in a training client system, which guarantees the existence of resources for the testing and application of knowledge [90]. This difference between systems is particularly important, considering that adult education is developed under the premise that adults learn using methods different from those used by children and young people [115,116]. This characteristic has led to the criticism of educational options in schools, based on the pedagogical concept, as the object of these options is precisely an adult individual with the ability to self-direct and self-develop [117,118].
Considering the competence in self-directed learning, adult education becomes more than a complement, a need for individual development in "learning to learn" [119], to ensure their survival in an environment in constant change and evolution, and with all the outdated inappropriateness that this dynamic has in the knowledge of each one. In this theory, one of the critical elements is the ability to get trainees to reflect on the learning objectives and their transfer to the workplace.
Current learning is based on the centrality of the adult, integrated both in a system that provides training, facilitating self-learning, and in a training client system, which guarantees the existence of resources for the testing and application of knowledge [90]. This difference between systems is particularly important, considering that adult education is developed under the premise that adults learn using methods different from those used by children and young people [115,116]. This characteristic has led to the criticism of educational options in schools, based on the pedagogical concept, as the object of these options is precisely an adult individual with the ability to self-direct and self-develop [117,118].
Considering the competence in self-directed learning, adult education becomes more than a complement, a need for individual development in "learning to learn" [119], to ensure their survival in an environment in constant change and evolution, and with all the outdated inappropriateness that this dynamic has in the knowledge of each one.
This new reality shows the existing duality between training for qualification and competence training. If the first, more educated, focuses on the possession by the individual of the knowledge considered necessary for a given job, regardless of the function performed, the second aims at the ability to mobilize knowledge and intelligence at work, in order to build competences that encourage action in the face of the most complex and varied situations, fleeing from the rigidity of procedures that, in the face of a more demanding job market, become obstacles to organizational success [120,121].
Vocational training is defined as training aimed at providing the individual with competences with a view to exercising one or more professional activities [122], and within the scope of training in public administration, as the global and permanent process of the acquisition and development of competences required for the exercise of a professional activity or for the improvement of performance [123], which places the focus of human resource management on the continuous development of human capital, specifically on individual competences. This perspective integrates what, in the industrial era, was characterized as the life cycle of individuals, namely, by the existence of a school age, an age for work and an age for retirement, following the assumption of sequential articulation between each of these phases.
The Memorandum on Lifelong Learning proposes the integration of these ages, from a perspective of social and organizational development, framed by the school and oriented towards lifelong learning, in an alternating training system [124]. In the European Union, it is on this assumption and on this dynamic that we intend to structure the knowledge society in the future [90]. This model has not, according to the studies carried out, by itself ensured the supporting role that schools and training centers aspire to, to build the intended integrated system.
Within the main limitations, and attentive to the Portuguese reality, the orientation towards punctual and mainly technical development, accompanied by the absence of strategic planning, markedly directed towards the short term, and without evaluation criteria regarding the effectiveness and efficiency of organizations, hurts irremediably any attempt to add substantial gains to the organization, thus, limiting the development potential of this model [125].
Vocational training should be seen as a moment to reflect and investigate, with the purpose of ensuring learning that guarantees, more than mere suitability for work, the safeguarding of the protection and development of the workplace and its worker [126,127].
The main purposes of professional training are to transmit knowledge and competences, adequate to the performance of the function; sustain the organizations strategy; increase the levels of motivation and satisfaction of assets, as well as their receptivity in acquiring knowledge and practical application; create opportunities in career development, thus, ensuring compatibility between individual expectations and organizational goals; integration in organizational change processes, through communication, participation and problem solving, wrapped in a perspective of continuous improvement; create a more competitive and qualified labor market, arising from the concept of the learning organization; facilitate the process of integration and socialization of assets, according to the required functions and outlined objectives [128][129][130][131].
In the national context, according to the National Qualifications System (NQS), initial training is recommended, which aims to acquire the knowledge, skills and abilities necessary for the exercise of professional activity, as well as continuing education, which enables the development of competences, aimed at adapting to changes in technology and organization, ensuring better employability, being carried out after leaving the education system or entering the labor market [122], thus, constantly following the individual throughout life. In this same context, and both in the general regime and in the regime of public admin-istration, the organization of training, defined according to specific characteristics, namely objectives, recipients, curricular structure, methodology and duration, is established as a training modality [122,123].
In the general regime, it is observed that in the constitution of the training modalities, the professional courses, apprenticeship courses, education and training courses, education and training courses for adults and technological specialization courses, are examples of modular training, while for training in public administration, the modalities of professional training are designated as follows: initial training, which may be of a general or specific nature, and the latter developed before admission or immediately after admission; continuous training, developed throughout the career and includes formal, non-formal and informal learning; training for a professional development, to strengthen competences, with the aim of integrating a different job position within the scope of a reorganization process.
Directing this investigation to the panorama of public administration, it is also important to mention that, in relation to professional training, it is subdivided into the following different types: short, medium or long-term training courses, associated with a final evaluative character; seminars, meetings, conferences, lectures, conferences or others, without an evaluative nature; internships, training workshops, communities of practice, mentoring, tutoring or other modalities not recommended in the previous [123].
In the training and development of human resources, the characterization of training, in terms of nature, purpose, form and subject, allows for a better understanding of its activity in organizations [132].
Vocational training programs based on on-the-job learning contribute to productivity and innovation in organizations. This contribution translates into greater autonomy for workers, who require less supervision, have greater commitment and responsibility for the quality of their work, as well as greater flexibility [133].
Professional training in the context of firefighters comprises initial training for entry into the career of firefighter and firefighter officer, the necessary access training for career progression and the training of command staff, under the competence of the National Emergency and Civil Protection Authority (ANEPC) that ensures the actions considered necessary for this purpose [134]. In fact, over the last three years, the Portuguese National Fire School has provided the Firefighter Leadership Course (Advanced Module destinated to Commanding Officers (Commanders, 2nd Commanders and Deputy Commanders)). Since leadership competence development is a recent area of study in fire services in Portugal, and because there is no specific model to this area of expertise, it has adopted Roucos's Leadership Competences Management Model from the military context to serve as a support to the training program. For this reason, Rouco's Leadership Competences Management Model, presented in Table 1, was also used for support in this study.
The professional firefighter profile was published in May 2018, in the Labor and Employment Bulletin, and it contains the organization of the training reference, with the respective training units in the technological aspect, to obtain the competences to perform the role of firefighter [135]. This reference for technological training, being transversal to apprenticeship courses, professional courses, modular training and education and training for adults, recommends 850 h in pre-defined short-term training units (STTU) and 150 h obtained from other STTU. For the last 150 h, among 59 possible STTUs, there are three STTUs of 25 h each about leadership, in the activity of firefighters for initiation, development, and advanced levels.
In the legal diplomas, created for regulation of admission and access to the firefighter career, we see a separation between the professional firefighter career and the volunteer firefighter career, with a particular focus on its duration and content [136,137].
Within the scope of leadership training, we can see that in the regulation aimed at professional firefighters, only 6 h are considered on the theme of leadership for admission, followed by three levels for accessing higher ranks in the firefighter's [137] career. It is also allowed to carry out training actions on leadership integrated in the training plan of the Municipality of Lisbon, through the Department of Development and Training (DDF) of the Directorate of Human Resources of Lisbon Municipality (DMRH/CML), which is open to employees from other municipalities [138].
The empowerment of the individual through education and vocational training programs implies considering the dimensions of the approach focused on the development of people and the priorities of organizations [139]. Within leadership development, it is also necessary to consider the effects that training has on this topic and what effect time has on developed competences, which may vary according to the type of competence and existing training, in terms of impact in the organization, as in the individual [140].
This research aims to identify the role of the Initial Training Course for Professional Firefighters (ITCPF) in the improvement of the proficiency level of leadership competences in firefighter trainees. To guarantee the coherence and orientation of this investigation, the following starting question was established: does the Initial Training course for Professional Firefighters contribute to the improvement in the proficiency level of leadership competences?
Based on the literature review and the starting question, we designed the conceptual model presented in Figure 2. Considering the object of study in this investigation, the variables under study and in accordance with the conceptual model, we formulated the following hypotheses: (A) Because training is an important aspect for leadership competence improvement, and with time, the impact of this improvement actually regresses to residual levels [141]:

Hypothesis 1 (H1).
There are significant differences in the proficiency level of leadership competences between the beginning of the course and school training.

Hypothesis 3 (H3).
There are significant differences in the proficiency level of leadership competences between the beginning of the course and on-the-job training.
(B) Amongst young individuals, there are findings that support results-oriented leadership, while older individuals tend to be team-oriented players [57] and for that reason, the following hypothesis was formulated:

Hypothesis 4 (H4).
There is an age group of interns that present proficiency levels of leadership competences that are significantly different from the other.
(C) The impact of formal education on leadership competences is described to enhance attributes such as integrity and interpersonal and team-oriented behaviors [65]. For this reason, the following hypothesis was formulated: There is a level of education that presents proficiency levels of leadership Considering the object of study in this investigation, the variables under study and in accordance with the conceptual model, we formulated the following hypotheses: (A) Because training is an important aspect for leadership competence improvement, and with time, the impact of this improvement actually regresses to residual levels [141]: Hypothesis 1 (H1). There are significant differences in the proficiency level of leadership competences between the beginning of the course and school training.

Hypothesis 2 (H2).
There are significant differences in the proficiency level of leadership competences between school education and on-the-job training.

Hypothesis 3 (H3).
There are significant differences in the proficiency level of leadership competences between the beginning of the course and on-the-job training.
(B) Amongst young individuals, there are findings that support results-oriented leadership, while older individuals tend to be team-oriented players [57] and for that reason, the following hypothesis was formulated: Hypothesis 4 (H4). There is an age group of interns that present proficiency levels of leadership competences that are significantly different from the other.
(C) The impact of formal education on leadership competences is described to enhance attributes such as integrity and interpersonal and team-oriented behaviors [65]. For this reason, the following hypothesis was formulated:

Hypothesis 5 (H5).
There is a level of education that presents proficiency levels of leadership competences that are significantly different from others.
(D) Considering that leadership outcomes may vary from the experiences that each individual has, and is not transversal throughout the career [62][63][64], the following hypotheses were formulated: Hypothesis 6 (H6). Professional experience prior to entering the career significantly influences the proficiency level of leadership competences in interns.

Hypothesis 7 (H7).
Military experience prior to entering the career significantly influences the proficiency level of leadership competences in interns.

Hypothesis 8 (H8).
Previous experience as a firefighter significantly influences the proficiency level of leadership competences in interns.

Course Description
The study was conducted in the Lisbon Fire Service during the ITCPF. The course objectives are to prepare individuals to suppress fires and perform rescue and assistance to the population during all types of incidents, accidents, or calamities, whether they are from man-made events or natural phenomena. The course runs for 1800 h (one year), divided into six months (910 h) of school training with physical, practical, and theoretical sessions followed by another six months (890 h) with on-the-job training (probation period).
During the School Context Training (STC) trainees are grouped in platoons and each are assigned a group of instructors. In the six months of STC trainees must comply with the following: 485 h of theorical sessions that include 6 major areas like fire suppression; basic technical knowledge of electricity, hydraulic, topography, communications, water supply sources, hazardous substances, personal protective equipment, engineering and construction, and vehicles and equipment; 250 h of practical sessions that include drills, simulations and operational maneuvers; 175 h of physical training sessions that include cardio fitness, swimming, upper and lower body strength and flexibility.
Within these three different sets of sessions, while within their platoon, trainees work individually at the theorical and physical sessions relying solely on their own effort. During practical sessions, trainees are submitted to drills, simulations and operational exercises as a team or teams within their own platoon. During these six months, trainees share the same barracks, washrooms, and mealtimes with their fellow trainees in their platoon.
For Training Component in Context of Work (TCCW), trainees are distributed between 11 fire stations within Lisbon Municipality. This organizational model will divide the platoon into 4 smaller teams and trainees integrate the regular shifts of 12 h of work with teams of senior firefighters.
Considering that this course is the main foundation of the firefighter's career and their development in terms of career progression, it is intended to identify the leadership competences with the highest proficiency levels when entering the course and verify which leadership competence levels most improve with the course.

Research Methodology
To obtain the objectives of the investigation, researchers conducted a case study of the ITCPF at Lisbon Fire Service because it is the only place in Portugal where it is carried out. To verify if ITCPF increases the proficiency level of leadership competences in trainees, researchers used a quantitative method through the application of a questionnaire with closed questions. For Fortin et al. [141] the quantitative method implies a systematic process of collecting data that can be observed and measured, and Sauders et al. [142] describes it as a synonym for any data collection technique, whether by questionnaire or by analyzing graphs and statistics.
To verify the improvement of the proficiency level of leadership competences throughout the course, researchers conducted a longitudinal study with the application of the questionnaire in three different moments (T0, T1 and T2). The criteria for the questionnaire application on these three specific moments was that these provide significant change and therefore offer the possibility to verify the existence of differences in the improvement of these competences, according to the different moments of the initial training course and the existence of differences in perceived competences according to age, level of education and previous experience (professional, military and volunteer firefighter).
When assessing the proficiency level of competence at the beginning of the course, it is sought to define the starting point with which trainees enter the course and thus establish a basis for different competences and different domains.
At the end of the six months, it is intended to measure the impact that the school training phase has on the proficiency levels of leadership competence perceived by the interns, at which time they will be evaluated again and compared with the values initially collected.
Moving to an on-the-job training regime after the initial six months of school training, the proficiency levels of leadership competence perceived by the interns will be evaluated again, where it is intended to verify what effect the contact with real situations and future colleagues have in the interns and in their perception of the proficiency level of their leadership competence.

Data Collection Instrument
To collect data, researchers used a questionnaire with closed questions. The questionnaires aimed to collect information about certain aspects such as facts, opinions, attitudes, preferences, values, satisfaction, beliefs, motives or knowledge [143], based on great flexibility in their structure, form and means of collecting that same information. [144]. Questionnaires, as quick-to-administer instruments, require participants to respond in writing and can sometimes be completed without interviewer assistance, interference, or variability. For these reasons, they are shown to be a more convenient instrument for respondents, being the collection method most used by researchers [141,145].
The questionnaire used to collect data in this study was Rouco's Leadership Competences Management Model Questionnaire [80], consisting of two parts that focus on the sociodemographic characterization of the sample through 6 closed questions and on the assessment of the proficiency level of leadership competences, through 81 targeted items for the 27 leadership competences of the adopted model, for example "I am good at identifying problems of the team". Respondents answered the questionnaire on the proficiency level perceived by themselves about leadership competences, assigning a rating on their perception of the different competences analyzed according to their degree of agreement with the statements, based on a Likert scale of 5 items (1 = strongly disagree; 5 = strongly agree).
The questionnaire was distributed in digital format during the training course, at three different times. All 81 items were mandatory. This feature allowed for the collection of 126 valid answers without any missing values.
The questionnaire was available for 5 days in each moment. Trainees were informed of the research objectives and the importance of participating, being asked to assign a personal code from the moment T0, which could be reused individually by each respondent, at different times during the training year. This feature allowed the team of researchers to match the responses throughout the course, as well as to assess the differences between the different contact moments (T0, T1 and T2).

Sample
The size of the sample consists of every single trainee that was admitted to the ITCPF and the response rate was total, since all trainees were asked to participate and stayed for an entire year without any drop-out from the training course. The sample is composed by 126 trainees from the ITCPF. The sample consists of 122 males and 4 females, aged between 18 and 35 years (n = 126), whose level of education varies from secondary education (n =116) to higher education (n = 10). In the sample considered, there are elements with professional experience (n = 52) and without professional experience (n = 74), with military experience (n = 47) and without military experience (n = 79) and with experience as a firefighter (n= 27) and without experience as a firefighter (n = 99).

Statistic Methods
For the treatment and analysis of the collected data, computer programs were used that allowed, soon after data collection, its registration in a database provided by the Google Sheet platform and which facilitated the process of transposition to a Microsoft Office Excel book 365. After working with the collected data, the existing database was transferred to the statistical treatment program IBM Statistical Package for Social Sciences (SPSS 20.0).
To enable the answer to the initial question, several techniques and tests were used, namely using descriptive statistics, from which location measures stand out, specifically those considered to be of central tendency, as they seek to characterize the value of the variable under study that occurs more frequently [146], namely arithmetic mean, median, mode and measures of dispersion of observations, namely the standard deviation of the responses obtained from the trainees during the different moments of the course. Graphs and tables were also used to support and organize information throughout the investigation.
The selection of statistical tests must consider the type of data, the population or sample and the objectives to be achieved, trying to verify whether the differences between the population values and the observed data are fortuitous [147].
In confirming or disproving the research hypotheses, the level of statistical significance was considered, as a valid procedure for verifying the differences between the formulated hypotheses and the data obtained from the study population and whose measure is the ρ-value. The definition of the level of significance allows for establishing the maximum probability of rejecting the null hypotheses when they are true, a situation called type I error [147]. For Fisher, the ρ-value of 0.05 is that which is necessary to decide whether a given effect on the population is in fact real and not the result of chance. Thus, the lower the value of ρ, the stronger the evidence against the null hypothesis, however, the interpretation of ρ-significant value must be at the discretion of the investigator and the type of study in question [148]. The ρ-value ≤ 0.05 was defined for this study as the limit to accept the alternative hypothesis.
To verify the normality of the distribution, the Kolmogorov-Smirnov adherence tests were used, according to the fulfillment of the application conditions, namely the existence of a sample greater than 50 individuals, or the Shapiro-Wilk test when the sample is equal or less than this value.
The tests used were the Student t-test to compare means in paired samples or independent samples considering, when possible, the application of the central limit theorem (CLT). Parametric tests, and in particular the Student t-test, are more robust and more likely to detect a real effect on the population [146].
In cases where normality was not verified and CLT could not be applied, non-parametric tests were an option, namely the Mann-Whitney test for two independent samples.
To test the confirmation or disavowal of H1, H2 and H3, the Student parametric t-test for paired samples was used, considering that data from the same population were obtained at different times of training.
To test the confirmation or disavowal of H4, H6 and H7, the Student parametric t-test for two independent samples was used.
To confirm or disprove H5and H8, the Mann-Whitney test for two independent samples was used due to non-compliance with the normality criterion.
For this reason, results of the tests performed will be presented in tables accordingly with the type of test and variables considered.

Results
The questionnaire is validated for the Portuguese population and presented a Cronbach's alpha between 0.8 and 0.9 for the 27 competences studied, which represents good internal consistency [149].

Descriptive Analysis
In this section, two types of results will be presented, resulting from the descriptive analysis of the variables and the inferential analysis of the collected data. The descriptive analysis shown in Figure 3 indicates the perception of the proficiency level in each of the competences, from the perspective of the trainees, showing which was higher throughout the ITCPF.

Results
The questionnaire is validated for the Portuguese population and presented a Cronbach's alpha between 0.8 and 0.9 for the 27 competences studied, which represents good internal consistency [149].

Descriptive Analysis
In this section, two types of results will be presented, resulting from the descriptive analysis of the variables and the inferential analysis of the collected data. The descriptive analysis shown in Figure 3 indicates the perception of the proficiency level in each of the competences, from the perspective of the trainees, showing which was higher throughout the ITCPF. Looking at the level of education as a perspective, the graduates with higher education levels included, as more proficient, the competences orientation for human relations ( = 4.90, S = 0.16) and interpersonal relationships ( = 4.73, S = 0.41), to the detriment of technical and professional aptitude.
Regarding previous experience, the trainees, in addition to generally perceiving the same competences, indicated transparency as one of the most proficient, specifically in 3  Looking at the level of education as a perspective, the graduates with higher education levels included, as more proficient, the competences orientation for human relations (X = 4.90, S = 0.16) and interpersonal relationships (X = 4.73, S = 0.41), to the detriment of technical and professional aptitude.
Regarding previous experience, the trainees, in addition to generally perceiving the same competences, indicated transparency as one of the most proficient, specifically in individuals without professional experience (X = 4.47, S = 0.56), in individuals with military experience (X = 4.53, S = 0.57) and individuals with experience as a firefighter (X = 4.48, S = 0.55).

Comparison between Different Moments of the Course
Regarding the improvement of the proficiency level of leadership competences, the Student t-test for paired samples was used, which assumes that the dependent variables are of the scalar type and with normal distribution. Despite fulfilling the first, the sample did not present a normal distribution at times T0, T1 and T2 (KS (126) = > 0.15 < 035, ρ = 0.00), but considering the central limit theorem, it is assumed that the sample is robust for the application of parametric tests [146].
It is verified that the results obtained between the different moments of the course show significant differences in some competences, according to Table 3. In accordance with age, professional and military experience, results are showed in Table 4. Based on age, at the beginning of the course, there are statistically significant differences in problem solving (t(124)= −2.15; ρ = 0.03) and influence by example (t(124) = −2.04; ρ = 0.04), while at the end of school education and on-the-job training, there are no statistically significant differences between the age groups. We verified that, at the beginning of the course, there are significant differences in the competences communication (t(124)= −2.91; ρ < 0.001) and interpersonal relationships (t(124)= −1.98; ρ ≤ 0.05), between interns without professional experience and interns with professional experience. In school education, there are no statistically significant differences (ρ-value > 0.05) in the proficiency levels of leadership competences in relation to professional experience. In training in the work context, there is only a statistically significant difference in self-confidence (t(124)= −2.01; ρ ≤ 0.05).
Regarding military experience, at the beginning of the course, there are statistically significant differences in influence by example (t(124)= −2.00; ρ = 0.05) and decision making (t(124)= −2.13; ρ = 0.03). In school education, the statistically significant difference occurs in self-control (t(124)= −1.98; ρ = 0.05). In training, in the work context, there are no statistically significant differences (ρ > 0.05) between the proficiency levels of leadership competences of interns without military experience and interns with experience.
Regarding previous experience as a firefighter, there is a statistically significant difference at the beginning of the course between interns without experience and interns with experience, namely in courage (U = 1004.50; ρ ≤ 0.05), while in school education there is a significant difference in problem solving (U = 978.00; ρ ≤ 0.05). There are no statistically significant differences in the proficiency level of leadership competences between interns with and without experience as a firefighter during on-the-job training.

Discussion
This study is a pioneer in the identification of the proficiency level of leadership competences in the ITCPF, and there are no other results from other authors; however, there will be a discussion focusing on the structure of the course and contents taught. This approach will allow for the conducting of changes at the course itself, towards leadership competences development. The experience and knowledge of sixteen years of firefighting of one of the authors, and the experience in teaching and education in fire service and military context of both authors, will be used to discuss the results from their perspective.

Proficiency Levels of Leadesrship Competences in ITCPF
The five leadership competences that hold the highest proficiency level throughout the course are consideration, determination and perseverance, openness to multiculturalism, optimism and enthusiasm, and technical and professional aptitude. These results indicate that trainees give importance to a certain amount of mutual trust and respect for others, while understanding their needs and expectations. They also valorise focusing on their objectives in the face of adversity, keeping a positive attitude while aware of the necessity of maintaining the adequate technical and professional capacity [80]. The fact that the trainees are faced with the challenges presented by the course can explain why the most perceived proficiency level of leadership competences are from the personal domain. By grouping the trainees into platoons, it provides them the opportunity of experiencing the different cultures, beliefs and values which may cause the competences of the social domain to be enhanced. Finally, the fact that firefighting is prone to danger, complexity and uncertainty may explain why competences of the functional domain are also perceived as highly proficient [36,64,75,79].

Impact of STC and TCCW on Proficiency Levels of Leadership
The results obtained indicate that STC presents higher proficiency levels in consideration, where interns develop trust and respect for the ideas, needs and expectations of others [75,80]; in determination and perseverance, where they seek to achieve defined goals and do not give up in the face of effort [75,76]; in optimism and enthusiasm when facing challenges, with a spirit of sacrifice and transmitting to others the enthusiasm to achieve the goals [15,79]; technical and professional aptitude, by maintaining and updating the competences and knowledge necessary to perform the tasks [55,80], and openness to multiculturalism, working with various people and maintaining respect for the different beliefs, values and cultural traditions of the others individuals [52,80].
During STC, it appears that there is a significant difference in the competence of delegative leadership, which reflects a higher perception of this competence at the end of the school period than indicated at the beginning of the course. Despite the most perceived proficiency levels of leadership competences being from the personal and technical domains, differences were also verified, although not significant, in the competences of decision making, problem solving, vision and conflict management. This improvement is particularly relevant because these skills are associated with social, organizational and functional domains, and may be explained by the number of practical simulations and drills during this period of training, which place trainees under stress and make them dependable upon each other; this leads to trainees sharing their experiences among the group and establishing a sense of belonging.
The analysis results indicate that between the beginning of the course and school training, there are significantly high differences in the proficiency levels of the delegative leadership competence, through the development of union and mutual trust [12,76]. It can be said that school training has higher levels of agreement in the improvement of 15 leadership competences, to the detriment of 11 that have lower values than those recorded at the beginning of the course. Based on these results, H1 is confirmed.
In terms of the TCCW, the competences with the highest proficiency level are consideration, determination and perseverance, followed by openness to multiculturalism, optimism and enthusiasm, and technical and professional aptitude. In this context, on-thejob training decreased the proficiency level of 26 leadership competences when compared to the results obtained during STC, which may be related to the fact that platoons are distributed in four smaller teams that are integrated in senior firefighter teams [75,80].
During the on-the-job training period, influence by example is the only competence in which there is a positive improvement, although not statistically significant, which can be explained by the hierarchical structure of the fire service and the constant presence of a senior firefighter in each team, assisted by the instructors from the STC period.
Apart from technical and professional aptitude, all the competences whose difference is statistically significant belong to either the personal or social domain of competence and show a decrease in the perceived proficiency level compared to the previous period. The decrease in the proficiency level of these leadership competences may be explained by the fact that trainees are separated from their previous group, in a different environment, and starting new relationships with their actual team, which is in line with other studies related to the effect of time on leadership development [141]. Based on these results, H2 is confirmed.
When comparing the initial and final moments of the course (T0-T3), there are ten competences with statistically significant differences, but with a decrease between the two moments considered (T1-T2).
When observing the proficiency level of leadership competences that have increased since the initial moment (T0), all competences belong to the cognitive or social competence type, with exception for the proactive competence.
The data also indicate that TCCW presents 18 leadership competences with lower proficiency values when compared to the initial moment of the course. During this period there are significantly high differences in the competences of determination and perseverance, optimism and enthusiasm, openness to multiculturalism, consideration, technical and professional aptitude, self-confidence, courage, teamwork, recognition and positive feedback, and interpersonal relationships at the beginning of the course, thus, reinforcing the impact of training on their development [140]. These ten competences with statistically significant differences were also those which, throughout the course, had a negative evolution and to which the competences of communication and transparency are also associated. Based on these results, H3 is confirmed.

Impact of Age on the Proficiency Levels of Leadership Competences
Regarding an age group presenting proficiency levels of leadership competences that are significantly different from the other, results indicate that trainees ≥25-years-old scored significantly higher in problem solving and influence by example, but only in the initial moment.
The initial perception (T0) of the proficiency level of leadership competences in trainees ≥25-years-old is higher than the other age group for all leadership competences.
However, during the STC, they only perceive higher proficiency levels of leadership competences than younger trainees in optimism and enthusiasm, professional and technical aptitude, self-control, and participative leadership. Of that previously mentioned, only self-control is higher than the initial proficiency level. During this phase, not only did their proficiency level decrease in most of the leadership competences, but also younger trainees increased theirs. During TCCW, trainees ≥25-years-old perceive their proficiency level of leadership competences higher than younger trainees, with exception to consideration, self-confidence, empathy, flexibility and adaptability, and recognition and positive feedback. In all of these, and despite perceiving it as lower than younger trainees, the older trainees decreased their proficiency levels in comparison with STC levels.
Looking at the overall effect, trainees ≥25-years-old increased their proficiency levels in five competences, while younger trainees increased their proficiency level in 14 leadership competences.
One interpretation is that the STC of the ITCPF is most beneficial in increasing the proficiency level of leadership competences in younger trainees because it empowers trainees in an environment that is new to them. Another possible interpretation is that TCCW is more stimulating to older trainees than younger ones because they see themselves without the support of the group, forged during STC, and this forces individuals to reach out for their core values and competences to obtain their position within the new group (shift).
Considering the statistically significant differences observed at the initial moment (T0) and the fluctuation in the proficiency level of leadership competences throughout the ITCPF, H4 is partially confirmed.

Impact of Education on the Proficiency Levels of Leadership Competences
Regarding a level of education presenting proficiency levels of leadership competences significantly different from others, the results indicate that trainees with higher education levels perceive significantly higher proficiency levels than others at every moment of the course.
The initial perception indicates that trainees with higher education perceive higher proficiency levels in all leadership competences, and particularly in flexibility and adaptability, recognition and positive feedback, interpersonal relationships, and proactivity, dividing their focus in personal and social domains of competence.
During STC, trainees with higher education perceive higher proficiency levels in all leadership competences, except self-control, where they perceive the same proficiency level as trainees with a secondary level of education. At this phase of ITCPF, openness to multiculturalism, orientation to human relations, interpersonal relationships and delegative leadership are the competences that significantly differ from trainees with a secondary level of education. All these competences are from the social domain and are consistent with the necessity of trainees during STC, to establish their connections within their own platoon.
Once in TCCW, trainees with higher education, again, perceive higher proficiency levels in all leadership competences, except self-confidence, where again, they perceive the same proficiency level as trainees with a secondary level of education. During TCCW, optimism and enthusiasm, orientation to human relations, communication, delegative leadership, conflict management and influence by example are competences that significantly differ from trainees with a secondary level of education. Most of these competences belong to the social domain, but personal and organizational domains are also present. One interpretation of these results is that trainees need to use more than social domain competences once they integrate TCCW and a new environment is created, forcing trainees, specifically the ones with higher education, to continue increasing their proficiency level of leadership competences [12,13]. Therefore, H5 is confirmed.

Impact of Professional Experience on the Proficiency Levels of Leadership Competences
Regarding professional experience prior to entering the career to have significantly influenced the proficiency level of leadership competences, the results show that trainees with previous professional experience scored higher in communication and interpersonal relationships when entering the course and are more self-confident at the end of the course than others. The initial perception indicates that trainees with professional experience perceive higher proficiency levels in all leadership competences and they only maintain higher proficiency levels compared with trainees that do not possess professional experience in optimism and enthusiasm, openness to multiculturality, professional and technical aptitude, self-confidence, teamwork, influence by example, interpersonal relationships and decision making during STC. Of these competences, only influence by example and decision making present an increase in their proficiency levels. During this first phase of the ITCPF, not only do trainees with professional experience decrease their proficiency levels, but trainees without professional experience increase their proficiency levels of leadership competences. Here, STC also provides a platform for trainees without professional experience to increase their proficiency levels, through the number of practical drills and simulations that force trainees to step up and assume leadership roles within the teams and platoon.
During TCCW, trainees with professional experience obtained higher proficiency levels in all leadership competences, except transparency, when compared with others. This is something that reflects not only the fact that trainees are divided into small teams in different fire stations but also the fact that drills and simulations are significantly reduced during TCCW.
Considering the statistically significant differences observed at the initial and final moments (T0/T2), and the fluctuation in the proficiency level of leadership competences throughout the ITCPF, H6 is partially confirmed.

Impact of Military Experience on the Proficiency Levels of Leadership Competences
Considering military experience prior to entering the course to have significantly influenced the proficiency level of leadership competences, the results show that trainees with military experience at the beginning of the course scored significantly higher in influence by example and decision making. They also scored significantly higher in self-control during school training but did not show significant differences in on-the-job training.
When entering the ITCPF, trainees with military experience reveal higher proficiency levels in all leadership competences, except orientation to human relations, consideration, and communication. During STC, they increase their proficiency levels in 19 leadership competences and perceive higher proficiency levels, when compared with trainees without military experience, with exception to openness to multiculturalism. This is also observed in TCCW, despite the increase during this last phase of ITCPF being residual and mostly observed in trainees without military experience.
The interpretation that can be made from these results is that military experience stands out during STC, with significant difference in self-control, because its actively requested during simulations and drills, and prolongs TCCW, but in this stage, there is a decrease in the proficiency levels of leadership competences, because trainees' range of autonomy is also decreased, along with the effects of time on leadership competences [75,141]. Therefore, H7 is partially confirmed.

Impact of Firefighting Experience on the Proficiency Levels of Leadership Competences
Regarding previous experience as a firefighter to have significantly influenced the proficiency level of leadership competence, results indicate that trainees without experience scored significantly higher at the beginning of the course in courage. During school training, they scored significantly higher in problem solving. During on-the-job training, they do not show significant differences between themselves and trainees.
During the initial moment (T0), trainees without firefighting experience perceived higher proficiency levels of leadership competences than others, with the exception of consideration, which was perceived with higher proficiency level by trainees with firefighting experience, and conflict management, in which they perceived both the same level. At the end of STC, trainees without firefighting experience perceived higher proficiency levels in all leadership competences, with the exception of interpersonal relationships. Despite this, STC allowed trainees to increase their proficiency level for 16 competences in trainees without experience and 11 in experienced trainees. This was not observed during TCCW, in which only one competence increased its proficiency level in trainees without experience, while trainees with firefighting experience increased their proficiency levels in 16 leadership competences. The effect of STC on trainees without experience is higher because simulations and drills during the first phase of the ITCPF stimulates trainees to a different reality that they are not familiarized with and without the presence of threatened lives. Another interpretation may be that trainees with experience as firefighters may consider simulations and drills a form of game, which they play without the risk of losing, a fact that could explain the increase in proficiency levels of leadership competences during TCCW. For this, H8 is partially confirmed.
In synthesis, education is the variable that promotes significant differences between trainees in personal, social and organizational domains of competence.
Among all the leadership competences with proficiency values lower than the initial ones, it is plausible to affirm that the ITCPF can promote the improvement of some personal and social competences in the first phase of the course, not being able to maintain this improvement during the second phase of training. This inability is also verified in competences in which improvement is observed, when considering the value obtained at the end of school education, with exception for the competence influenced by example.

Conclusions
In response to the initial question, it is concluded that the training course contributes to the improvement of the proficiency level of the following nine leadership competences: problem solving, participatory leadership, delegative leadership, conflict management, influence by example, task orientation, decision making, vision and proactivity.
On the other hand, it is also concluded that there are ten competences where there is a setback in the proficiency level, where the differences between the levels of entry into the training course are significantly higher than the levels of exit. This conclusion is of particular interest, since there has been an increase, albeit barely significant, in the proficiency level during STC and an inflection in the improvement of competences during TCCW.
Another conclusion drawn from this investigation is that the most valued competences are in the personal, social, and functional domain, but the competences that received constant improvement are mostly associated to the social, functional, and organizational domains. The course has a standardizing trend, regarding leadership competences, regardless of the characteristics of the sample but this is generally focused in social, functional, and organizational areas, leaving the personal competences at the expenses of each individual's background.
This investigation holds, as practical implications, the mapping of leadership competences in initial training courses for professional firefighters in Portugal and the contribution of this course in their improvement.
The greatest relevance for this work for Portuguese firefighters is the identification of the contribution of the initial training course, regarding leadership competences; allowing the creation of the platform necessary to identify possible areas of development in the leadership competences for career progression; adjustments in the course itself (by inducing leadership awareness in the course); alignment of the definition of terms associated with leadership that will allow a common glossary for firefighters as a whole and that will benefit the recruitment, selection, evaluation, career progression and operationalization of the decision-making process in joint operations.
The implication for the theoretical field is the proof that ITCPF did increase the proficiency level of leadership competences, based on simulations, drills and the reflexions that are made upon completing these sessions, allowing the adult trainees to analyse, dissect and assimilate the different aspects of the firefighting activity, in accordance with Kolb's experiential learning cycle [114].
The main limitations of this research were the limited literature and scientific research available, in terms of leadership competences applied to fire services in Portugal, a fact that forced an additional research effort, to obtain references abroad and from other fire services, who are often integrated into clearly different organizational structures and with very specific cultural, social, and political dimensions. Furthermore, the reduced number of female trainees did not allow us to obtain any suitable information regarding differences between male and female trainees' proficiency level of the different leadership competences.
As a future proposal, it is suggested that researchers should identify which competences are considered core to firefighters, according to the respective functional profile applicable to each category, thus, allowing the opening of new lines of research on lead-ership throughout the career, either through the diagnosis of the existing competence proficiency level, with the creation of a specific leadership competence management model for firefighters, or through the anticipation of the needs of their officers and commanders, prior to their ascension in the structure.
Funding: This research received no external funding.

Institutional Review Board Statement: Not applicable.
Informed Consent Statement: Informed consent was obtained from all subjects involved in the study.

Data Availability Statement:
The data presented in this study are available on request from the corresponding author.