Emotional and Spiritual Intelligence of Future Leaders: Challenges for Education

: The study was focused on understanding emotional and spiritual intelligence, and leadership linkages. The aim of the study was to explore the relationship between emotional and spiritual intelligence and self-leadership skills of university students in the ﬁelds of management, as potential future leaders. The data were collected using three scales: Emotional Intelligence Scale (WLEIS), Spiritual Intelligence Inventory (SISRI-24), and Self-Leadership questionnaire. The study was conducted among 190 university students. The results obtained show that there are connections between emotional and spiritual intelligence and self-leadership. The study may be a good starting point for further research in this ﬁeld and lead to reﬂection about spiritual knowledge on the leadership education program. consistency priori Pearson correlations between the SISRI-24 total and the subscales: CET, TA, PMP, CES; and the WLEIS total and the subscales: SE, OE, UE, RE; and the Self-Leadership questionnaire and the LS1, LS2, LS3, LS4, LS5.


Introduction
Leadership education programs in universities have traditionally focused on such competencies as management and economics [1] in order to prepare good managers for organizations. It was related with the belief that only a leader with high intelligent quotient (IQ) can better understand and optimize organizational systems and their complexities. Many previous studies in the leadership literature have focused on the rational intelligence of leaders. The IQ for assessing human intelligence is commonly accepted as a ratio of rational and logical knowledge [1] that allow leaders to gain success. However, many employees who want to be leaders are eventually eliminated, despite their high logical intelligence [1]; and highly intelligent leaders are not necessarily more effective [2]. As a result of the further search for what makes a leader effective, attention was paid to emotional intelligence (EI), that was an important challenge for future leaders [3]. EI tried to explain why some employees are better as leaders than the others [4]. Some research has pointed out that feelings are the most crucial factor for leaders [5] and leaders and followers should possess rather emotional knowledge than technical knowledge [6]. Another research has indicated the link between EI and the performance of leadership [7,8]. Thus, teaching managers to build better relationships was crucial to the propagation of organizational performance systems [1]. Leadership education programs have focused on emotional intelligence as desired knowledge. However, in today's ever-changing business environment, there is a need for something more. After a period of fascination with the IQ and EI of a leader, the time has come for a new kind of intelligence. Beyond the awareness of intellect and relationship, the ability to find inner security in that external environment is a key for effective leadership. The term "spiritual intelligence" (SI) has appeared [9], and is considered as the foundation of both rational and emotional intelligence [10] (p. 57). In response to the need to meet the challenges of unpredictable circumstances, spiritual knowledge should be included in leadership training [1].
The IQ responses on how to lead; the EI-who you lead; and the SI-why you lead [1]. These questions can be starting points for leadership education development, because all three intelligences: IQ, EI and SI, make up leadership intelligence [2]. This is important because of a limited number of research-linking intelligence, leadership and education [11]. Leadership education needs to be guided by a strong, up-to-date curriculum and cutting-edge knowledge, which provides the crucial leadership skills and competencies that students need to develop and sustain as future leaders. Although management is related to logical intelligence, decision making is based on beliefs and values as a guideline; this means spiritual knowledge [12][13][14]. Making managerial decision based only on cogent intelligence and reducing emotional and spiritual side of employees is 'a mistake' [12]. Modern leadership education should also include emotional and spiritual intelligence.
This study was focused on both emotional (EI) and spiritual intelligence (SI). Firstly, the study examined the level of EI and SI of university students in the field of management. This enabled the study to determine the needs for leadership education programs in the topics. Secondly, the study explored the correlation between the constructs: emotional intelligence, spiritual intelligence and self-leadership. Thirdly, it offered a study of the correlation between the subscales of these constructs. This paper is structured as follows. The first section describes emotional and spiritual intelligence on leadership. Hypotheses of the field study were then developed under this section. The next section describes the methods and the data analysis that were used to support the field study. The remaining part of the paper concludes the findings, with directions for further research for leadership development in education.

Emotional Intelligence of a Leader
The theory of emotional intelligence (EI) was popularized and linked to leadership by Daniel Goleman [7,15], and since that time, it has been considered as the most significant skill, necessary competency and proper behaviour of a leader [16]. EI is labelled as the awareness, assessment, and management of one's own emotions, as well as others' emotions [17][18][19][20]. Over the years, several EI models were proposed, to broaden knowledge about the abilities, personalities, and skills related to emotional side of man [21,22]. The commonly used metrics of emotional intelligence indicate four dimensions: appraisal of self-emotion, appraisal of others' emotion, use of emotion, and regulation of emotion, according to Emotional Intelligence Scale WLEIS [23]. The self-emotion appraisal dimension is related to the capability to recognize and express one's own emotions. The appraisal of others' emotion is related to the ability to observe and distinguish the emotions of other people. The use of emotion focuses on the skill to use emotions constructively. The regulation of emotion means regulating one's own emotions and managing one's own emotional experiences. This model was used in this study.
In the context of leadership, managers should not only identify the emotional states of their employees, but also regulate them [24]. Some research presents positive links between leaders with high EI and the happiness, satisfaction, mindfulness, trust, faith and commitment of workers [25][26][27]. It is related to a leader's ability to better understand their employees and adjust their leadership conduct suitably [28]. However, EI is not the only determinant of employee well-being, but has a profound impact on leadership effectiveness and success [29][30][31]. The managing of EI has a strong impact on success [32]. Many researchers have also stated that leaders with high EI influence organizational results [33], the functioning of a group and a team [32,34]; organizational change [35,36]; potential sustainable growth [37]. Many researchers' studies also included the relationship among emotional knowledge and leadership styles, like transformational or visionary leadership [38,39]. To summarize, the hypothesis is as follows: Hypothesis 1: Emotional intelligence has a positive relationship with self-leadership.

Spiritual Intelligence of a Leader
Spiritual intelligence connects intelligence with spirituality as a new construct [10], and as a quotient of the level of spiritual leadership [40]. While spirituality is a sense of higher-consciousness and divine existence [10], spiritual intelligence is related to the skills to use divine aspects to enable goals achieving and problems solving [41] (p. 59). Spiritual intelligence is an internal ability, related to mind and spirit and its connections to the world [42]. However, this internal ability influences external ability. Thanks to spiritual intelligence, we can discover a deeper sense and use it to solve the complex problems of the present. Spiritual intelligence can develop a constructive trait and enable one to make use of the capability to face danger and anger. People with a high spiritual intelligence rate are more tolerant, honest, and full of affection to others in their life [43]. Spiritual intelligence allows us to also draw knowledge from the richness of our heart and the universe. Many authors have reported that it is a kind of intelligence that allows a sense of contact with people, the whole, a sense of its own fullness, seeing connections between diverse things [44]; and also understanding the significance of relationships to support the interconnections [10,45]. It is an ability to see spiritual aspects of the self and others, and interconnectedness [46]. Spiritual intelligence is an internal compass between what is internal and what is external, providing a sense of meaning and a significance to experiences of which we are the co-creators. Many authors have pointed to this sense of higher meaning and purpose [41,44,47] and critical approach to them [46]. One of the most important aspects of spiritual knowledge are questions 'why' or 'what if' to seek fundamental answers [44]. Spiritual intelligence is a self-consciousness that teaches us how to go beyond the sphere of ego closest to us and reach deeper layers of the potential hidden within us [44], for a better existence [48].
Many authors have stated the core elements of spiritual intelligence [41,[48][49][50]. Although the elements of spiritual intelligence differ slightly, most of them are overlapping. The most frequently used words are ability, capacity and capabilities. Besides such capabilities as high consciousness, self-awareness, transcendence, mastery, sense of the sacred or divine, altruistic love, freedom [48,50], which may sound abstract, many other abilities can support us in everyday situations, for example, understanding and embracing everyday experiences, events, and relationships, using spirituality to solve everyday difficulties, engaging in moral behaviour, feeling a sense of meaning, trusting for oneself and others, and developing responsibility for wise behaviour [49]. It means that spiritual intelligence not only allows us to feel higher and deeper feelings in certain moments, but also helps us in our everyday personal and work life. It is very important, because we are not different at workplaces and outside our workplaces. We are the same both in our personal and our work-life situations, with a certain perspective, consciousness, self-knowledge, approach to difficult situations, solving problems or building relationships with people. Thus, what we think and do is expressed not only in our personal life but also in our workplaces. One of the concepts of spiritual intelligence includes critical thinking about existence, that is related to thinking about the spirit, the world, and the existence; personal meaning production-related to seeking a sense of meaning and purpose in the experiences of one's life; the expansion of conscious state-related to control of getting in the higher states of awareness; transcendental consciousness-related to recognizing the ways of attending transcendence; [46]. This model was used in this study.
Spiritual intelligence is crucial for leaders, in order to create spirituality in the workplace for followers. In a dynamic business environment, leaders have to seek inner peace [51]. Spirituality is needed for leaders to grow their own sense of identity, to find the purpose of their own work, and to support follower's values with a strong sense of meaning [52]. Spiritual leadership is based on the essential needs of people in order to gain a harmony of vision and value among individual employees and whole groups, which can increase organizational results [53]. Many studies have indicated that spiritual leadership is necessary for spirituality at all level of work: the individual, team, and organization [54,55]. It affects life and job satisfaction [56], motivation and commitment [57], organizational efficiency [58], productivity and performance excellence [59] and the flexibility and creativity of the organization [60]. Spiritual intelligence might be considered as a driving power for a leader [61]. To summarize, the hypothesis is as follows: Hypothesis 2: Spiritual intelligence has a positive relationship with self-leadership.

Relationship of Emotional and Spiritual Intelligence
Emotional and spiritual intelligence supports organizational principles, ethical values and all organizational decisions. However, there are only a few studies that have shown the need for all leaders to have emotional intelligence with spiritual strength and lead with more meaningful behavior, or the importance of the relationship between emotional and spiritual intelligence, and the efficiency of leaders [62]. The studies showed that emotional intelligence and spiritual intelligence are interrelated [48] and strengthen each other [63]. Spirituality growth enhances emotional awareness. This, in turn, impacts the competence of managing and controlling emotions, which further reinforces spiritual development [64]. Thus, emotional intelligence level affects one's use of spiritual intelligence [10]. Spiritual knowledge facilitates understanding reason and emotion [23]. Many elements of both emotional and spiritual intelligence are common. Spirituality develops the intrapersonal and interpersonal competences [44] that are the components of emotional intelligence. Emotional intelligence with the understanding of emotions-both our own and of others-is closely related to such good attitudes as humility, forgiveness and thankfulness [43].
However, there is still insufficient research to show the relationship between emotional and spiritual intelligence. Moreover, many research studies are theoretical or conceptual studies and were derived from an Eastern context. Thus, this leads to the follow hypothesis: Hypothesis 3: Emotional intelligence has a positive relationship with spiritual intelligence.

Method
The study used an online questionnaire among students from Bialystok University of Technology in Poland. The data were collected in November 2019 from 190 students. The questionnaire contained three dimensions: spiritual intelligence, emotional intelligence and self-leadership. In this study, the SISRI-24 (Spiritual Intelligence Self-Report Inventory) was used [41]. The SISRI-24 questionnaire was primarily used for a sample of university students with satisfactory validity. Thus, the SISRI-24 was applied in this study to measure spiritual intelligence with its subscales: CET, TA, PMP, CES. In the SISRI-24 questionnaire, five-point scales from 0-'not at all true' to 4-'completely true' was used.
Next, the Emotional Intelligence Scale (WLEIS) proposed by Wong and Law [65] with four subscales: SE, OE, UE and RE were adopted in this study. The WLEIS also had sufficient reliability, with validation in many countries [65]. In this questionnaire, a five-point Likert scale, from 0-'totally disagree' to 4-'totally agree', was used.
In order to determine the abilities of leadership inherent in the students, the Self-Leadership questionnaire (SL), according to Houghton [66], was used with five dimensions: (LS1) self-goal setting related to set specific goals for yourself; (LS2) evaluating beliefs and assumptions related to ability to evaluate the accuracy own beliefs and articulate them; (LS3) self-observation related to awareness of own progress and keeping a track; (LS4) focusing on natural rewards related to among others seeking pleasant rather than the unpleasant aspects of own's work; (LS5) self-cueing with using concrete reminders (e.g., notes and lists) to help focus on activities. In this questionnaire, a five-point Likert scale from 0-'totally disagree' to 4-'totally agree' was also used.
The SISRI-24, WLEIS and Self-Leadership questionnaires were used in the Polish language.

Data Analyses
Descriptive statistics, reliability and validity were calculated for the SISRI-24, the WLEIS and the Self-Leadership questionnaire and the subscales. The Cronbach's alpha estimated the internal consistency of each priori scale and subscale. Pearson correlations between the SISRI-24 total and the subscales: CET, TA, PMP, CES; and the WLEIS total and the subscales: SE, OE, UE, RE; and the Self-Leadership questionnaire and the subscales: LS1, LS2, LS3, LS4, LS5. The confirmatory factor analysis (CFA) was performed using structural equation modelling (SEM) with the STATISTICA program.

Participants
The study was conducted among 190 students from Faculty of Engineering Management at the Bialystok University of Technology in Poland. The students are educating themselves to become managers in the near future, thus they are potential future leaders. The survey allowed one to gather the information on the field of study, gender and years. Sixty-six percent (66%) of the respondents were female and thirty-four percent (34%) male; the students were from 18 to 24 years old; and all respondents study on different kinds of specialization in the faculty; however, all specializations were related to management.

Results
The descriptive statistics and Cronbach's coefficient alpha of the SISRI-24, the WLEIS and the Self-Leadership questionnaire, are presented in Table 1. Cronbach's alpha were: 0.90 for the SISRI-24 total; 0.92 for the WLEIS total and 0.90 for Self-Leadership total. The reliability indicates an acceptable internal consistency (i.e., alpha = 0.70 or above). The reliability is also acceptable for all subscales. The means of the SISRI-24, WLEIS and Self-Leadership were assessed as average. Self-Leadership was assessed as the highest by the respondents (mean_2.98, stand. deviat_0.64); next was emotional intelligence (mean_2.38, stand. deviat_1.24). The average of emotional intelligence is slightly higher than spiritual intelligence that has the lowest rate (mean_2.06, stand. deviat_1,29). It can be noticed that the particular subscales were assessed differently-from 1.65 (CSE) to 3.11 (SL3). The results obtained show that students possess skills to manage their own tasks, they can set and achieve the goals, and they are reflexive, because they can analyze their performance and try to focus on the good aspects of their work. These skills can also be good for them as future leaders. The students also possess quite good abilities of management, especially controlling their own emotions. Appraisals of other emotions are more difficult for the respondents. The subscales of spiritual intelligence were assessed to be low. The lowest rate reached a conscious state expansion that, in general, sounds quite abstract.
The results of correlations between the SI, EI and SL and their subscales are shown in Table 2. There are positive and significant (p > 0.01) correlations between SI and EI (0.508); SI and LS (0.462); and EI and LS (0.631). The results support the hypotheses. All subscales of three constructs: spiritual intelligence, emotional intelligence and self-leadership, have positive correlations (from 0.195 to 0.556). The strongest correlations are between personal meaning production (PMP) and use of emotion (UE) (0.556, p > 0.01), appraisals of self-emotion (SE) (0.540, p > 0.01), and appraisals of other's emotion (OE) (0.444, p > 0.01). Moreover, the rest of the subscales of spiritual intelligence, as well as emotional intelligence, have positive and significance correlations between each other, and with self-leadership. This means that these constructs and their subscales may influence each other and increase these abilities. Table 3 and Figure 1 show the results of the structural model from the GLS-ML output. The confirmatory factor analysis (CFA) was used to test the validity of the constructs. The Chi-square value, df, root mean square error approximation (RMSEA), goodness-of-fit index (GFI) and normed fit index (NFI) was applied for p > 0.05. RMSEA in both constructs: spiritual intelligence and self-leadership, is below 0.01 which means a very good fit; in the case of emotional intelligence, this is below 0.05, which means a satisfactory fit. Moreover, GFI (>0.9) and NFI (>0.9) confirm a good fit. However, the subscale SL4 (focus on natural reward) which forms the construct of self-leadership was removed, because of a poor fit. It should be noted that SL4 had the lowest Cronbach's alpha indicator, as well as low Pearson correlations with other subscales from the above analysis.  The SEM was used to test the factors that determine self-leadership ( Figure 1). Perceived emotional intelligence was a significant predictor of self-leadership (β = 0.456, p > 0.05). Thus, the Hypothesis 1 was supported. The results obtained show that spiritual intelligence is also a significant factor (β = 0.414, p > 0.05) that supports the Hypothesis 2. These relationships mean that the higher the level of emotional and spiritual intelligence, the higher the level of self-leadership. It should be noted that spiritual intelligence is positively related to emotional intelligence (β = 0.030, p > 0.05), however, this relationship is not sufficient. Thus, this finding did not support Hypothesis 3.

Conclusions
The results of the study indicate that there is a significant and positive link between emotional and spiritual intelligence and the self-leadership of the students. Meanwhile, many previous research have indicated the correlation between emotional intelligence and leadership; this study draws attention to the fact that spiritual intelligence may also be important for leadership skills. Both kinds of intelligence are predictors of the ability of self-leadership. Self-leadership competence of the students can be useful in the future, when these students become leaders. To enhance leadership skills, emotional knowledge and spiritual knowledge may be considered as a subject in the leadership education program.
The results also presented that there is a link between emotional intelligence and spiritual intelligence, although it can be noticed that emotional intelligence is not a predictor of spiritual intelligence. Moreover, the results presented that both the spiritual intelligence and the emotional intelligence of the students had been assessed to be at quite average levels. Thus, the gap in possessing this kind of intelligence indicates that they should be strengthened under leadership courses for the development of leadership intelligence.
The results allow for the conclusion of some findings about the connection of spiritual and emotional intelligence and self-leadership in the context of education. The results showed that emotional knowledge should be further developed under the leadership education program, while spiritual knowledge should be introduced as a subject to the leadership education program. Education cannot be reduced to rational knowledge (as it is now) or emotional knowledge (which exists more often), but enhanced to include spiritual knowledge. Spirituality according to literature becomes a crucial success factor for an organization by creating a positive work environment, and has effects on positive emotions. Leadership education often pressures the significance of self-interest and profit-making as a main potency of building competitive advantage. However, the dynamic, volatile, and unpredictable circumstances in organizational environment force changes in the approach to leadership education. Thus, it seems that the theory of spiritual intelligence is worth being further developed and introduced to the leadership education program. It is significant for improving the quality of leadership education.
As a further direction of the research, it would be worth it to conduct other surveys to confirm the above results. Firstly, the quantitative survey using a questionnaire is based on self-reported data. This causes the questionnaire to measure the subjective perception of one's own intelligence. Secondly, the structural equation modeling does not confirm the impact of emotional intelligence on spiritual intelligence. However, there is a positive link between these two constructs. It should be further developed to clearly confirm or exclude the correlation.
In conclusion, this study sheds light on recognition of the significance of emotional and spiritual intelligence of leaders. It can be inspired for expanding the theory of intelligence, especially spiritual intelligence that is still under research in the context of leadership education.