Dominant Factors for an Effective Selection System: An Australian Education Sector Perspective

With the latest advancements in information technologies, many organisations expect systems to provide effective support in the recruitment process and decision making. However, there is a lack of clarity on the dominant factors required for an effective recruitment system which can influence business outcomes. This paper aimed to identify the predominant factors in the employee selection process and the use of a management system for decision support. The empirical study consisted of a qualitative survey of 74 samples and a quantitative survey of 204 individual participants from 17 organisations coming from technical and further education (TAFE)/dual education (higher education and vocational education) sector members of the Victorian TAFE Association in Australia. Using commonly adopted exploratory factor analysis (EFA) of 38 variables, the data triangulation of the qualitative and quantitative analysis resulted in conformance of five dominant factors under three themes. We believe the results of the study offer actionable suggestions in developing an effective recruitment system and furthers the research in this field of study.


Introduction
Recruitment systems increasingly require a focus on talent acquisition (TA) which is the process of advertising and attracting potential job applicants from internal or external sources to the organisation and then to assess their suitability for the job advertised with the final goal to select the applicant that best fits the job description [1]. Huffcutt and Culbertson [2] note, "it is rare, even unthinkable, for someone to be hired without some type of interview". In light of TA being of prime importance to an organisation, Wyatt and Jamieson [3] note that employee selection processes are known to be notorious for decision making which is unreliable and often invalid and, hence, propagating the need for an expert system based on an objective approach to reduce the possible biases and prejudices which are mainly based on probable predispositions as clearly documented in their literature. This process has two key stakeholders: First are the interviewers who are the representatives of the organisation and play a vital role in conducting interviews to identify the best candidate suited for the position [4]. The second key stakeholders are the applicants or candidates who express interest in becoming future employees of an organisation by applying for the job advertised [5].
The selection methods currently used by interviewers to assist with predicting the most suitable applicant that matches the job requirement are diverse and imperfect [6]. To increase the accuracy of the prediction of the right applicant, there are different types of applicant testing methods that are constructed and implemented by different organisations [7]. Personality tests, integrity tests, and psychological and psychometric tests are most commonly used to achieve good recruitment outcomes [8]. Information technology (IT) has been used in facilitating the execution of these tests and to further calculate the applicant scores as well as report the test performance with explanations and recommendations. These tests have also advanced into various recruitment management and applicant management expert systems that have been introduced [6]. Wyatt and Jamieson [3] have gone to great lengths to analyse and build an expert system called "CHAOS" (Computerised Helpful Advice on Selection) to assist with building an objective hiring process. Through their research, they have demonstrated that an expert system-based approach to decision making will provide more reliable decisions known for their consistency. They also mention that there is always contention in the process of recruitment and selection, thereby making it an ideal domain to build an expert system to assist managers' decision processes enabling objectivity and fairness. In this context, another vital dimension to cover is the validity of the selection procedure. Robertson and Smith [9] outline the essential elements in the design and validation of the employee selection process.
In more recent times, with the advancements in IT, several applications of technologies in the selection processes are also being upgraded using artificial intelligence. This is necessary due to the uncertainty and increased risk coupled with the limited time to make the right decision to select the best applicant for the organisation [10]. Communication robots focusing on social innovation are being tested for non-verbal behaviour recognition to predict social interaction outcomes [11]. The architecture of these robots shows that they are emotionally aware and tuned to identify face detection, speech recognition, emotions reading, and gesturing, along with interview data processing [12]. Based on the desired level of sophistication of such expert systems, job interviews could be automated with either structured or unstructured interviews. However, many organisations are not able to adopt such sophisticated recruitment systems. This is because several influencing factors guide the recruitment process for making the system effective, and there is a lack of research in this direction. Apart from factors such as job interviews being structured or unstructured playing a significant role, the personality aspects are critical as they lead to work performance and finally to employee retention. Such factors having a long-term impact are essential for a successful recruitment system. In order to unearth all these key dimensions, this research study focused on identifying the dominant factors in the interview and selection process for developing an effective recruitment system.
In this paper, all types of job interviews were broadly categorised under two headings, either structured/high-structured interviews (HSI) or unstructured/low-structured interviews (LSI) [13]. There have been many definitions for the term "structured interview" in the literature [14]. One, in particular, provides a crisp and clear understanding: "the degree of discretion that an interviewer is allowed in conducting the interview" [15]. Unstructured, on the other hand, is when the interviewer can ask different questions to each applicant in any order and pattern that the interviewer deems fit [16]. Based on the job interview type being structured or unstructured, increased or decreased objective/subjective elements play a role in the hiring decision. Research has established that structured interviews have higher criterion-related validity and improved dependability than unstructured interviews [13]. However, there is evidence in support of the counter-argument as well, where an empirical examination of hiring decisions of auditors highlighted that increased subjective elements in the hiring decision had the highest explanatory power in influencing the hiring decision [17]. This paper intends to uncover more benefits and drawbacks of these two types of interviews by understanding the dominant factors in the employee selection decision process. The research was based on an empirical study with a focus specifically on the current recruitment systems in practice within an Australian technical and further education (TAFE)/dual-sector setting. In addition, the findings are presented from the perspectives of these stakeholders when they experienced the same process from different contexts based on their roles, such as hiring member and applicant, and outcomes which were further classified into successful and unsuccessful applicants.
The purpose of this paper was to discuss the dominant factors of the selection process, specifically studying the current status of 17 organisations from an Australian TAFE/dual-sector in the use of technology and management systems within their TA process. This study is a continuation of ongoing research, and the objective of this empirical study was to identify and understand the dominant factors of the employee selection process. This research carries forward from discussions on the quantitative analysis of the critical aspects of the selection process outlined in our previous study [18]. The focus of this paper was to consider the factors that can influence the decision based on different perspectives of the participants, such as hiring members, successful applicants, as well as unsuccessful applicants. Here, we adopted a mixed-methods approach using statistical techniques for quantitative analysis and thematic analysis for the qualitative analysis to meet the research objective.
This paper is organised around the predominant factors in the employee selection process and the use of a management system for decision support. Section 2 provides the research context and method along with introducing the sample participants of this investigation, namely the TAFE/dual education (higher education and vocational education) sector members of the Victorian TAFE Association (VTA). This section also presents a breakdown of the characteristics of the sample collected. Section 3 describes the pragmatic study design to map this paper's research question with the qualitative and quantitative questions and sets the stage for the analysis to be conducted in the next section. Section 4 breaks the examination into two parts with the quantitative analysis findings presented first followed by the qualitative data presented next. Section 5 summarises the results from these investigations and compares the findings from both the quantitative and qualitative methods as part of data triangulation. Lastly, Section 6 concludes with recommendations for future research.

A Review of the Theoretical Framework
Research on improving human resource management (HRM) processes with the help of expert systems is an ongoing endeavour. In these studies, the key areas of improvement in HRM systems and applications calls for further investigation by taking a multi-level approach to the analysis [19], accounting for selection bias [20], and reviewing the associations among all HRM systems in an organization to better understand the HRM expert systems with its performance outcomes [21]. The focus of using expert systems in HRM has been steadily increasing with time. This is further evidenced in the recent shift of discussions related to individual HR practices in employing HR systems to the whole process [22]. This is also evidenced in the review by Sackett and Lievens [23] on the possible platforms to consider for improving the selection process. Some of the seminal and fundamental theoretical frameworks that researchers have used over the last few decades are reviewed, and a summary is presented in Table 1 below. Overall, there is no single framework that is approved as an all-encompassing theoretical framework by these researchers for this topic. It is used in predicting how a person would behave based on their pre-existing approaches and behavioural intents.

Social Cognitive Theory
Albert Bandura Remembering the consequences and sequence of others experience and using this information to guide their own subsequent behaviours even when they have not experienced it beforehand.

Retention
Expectancy-Value Theory

Lynd-Stevenson
There must be a balanced relationship between the candidate's expectations and the value the company can deliver.
This research assumed the Applicant Attribution-Reaction Theory (AART) framework by Ployhart and Harold [24], which is a model integrating attribution theory into applicant reactions. Validating this information with the explanation given by Lederman and Lederman [25] on the purpose of theoretical frameworks in research, it can be stated that using AART for this empirical study would serve to be a guiding framework for our research investigation as illustrated in Figure  1 below. They confer that qualitative researchers tend to analyse the data they have collected by invoking a theory to assist them in establishing their findings from the investigation in the context of existing literature. As this study is the second part of an ongoing research project outlined earlier by Rozario and Venkatraman [18], this paper focused on identifying the dominant factors of the selection decision based on the existing processes with the current use of systems and technology by the various organisations operating in the Australian TAFE/dual education sectors within urban and regional Victoria.

Empirical Study Background
In this section, we present background information on the empirical study conducted with data collected from 17 TAFEs/dual-sector organisations listed with the VTA using face-to-face interviews

• Perception • Behavioral Intention
Outcome and an anonymous online survey instrument. A research method can be entirely qualitative, quantitative, or mixed-methods based on a combination of both qualitative and quantitative approaches. We have identified the mixed-methods approach as an appropriate research method for this study due to the fact of its various properties. The mixed-methods approach involves the collection of qualitative data in the form of open-ended questions and quantitative data from closedended questions in response to the research questions. The procedure for data collection and analysis is rigorous in obtaining both forms of data [26]. In this study, the research methodology was a mixedmethods approach with convergent parallel and concurrent design techniques. Bell and Bryman [27] note that the convergent parallel design technique, where the data obtained from quantitative and qualitative sets are interpreted concurrently, provides a more comprehensive and a richer multidimensional understanding and response to the research questions. By doing so, the concurrent data triangulation is enabled, wherein the data obtained from the qualitative and quantitative sets during each research phase undergo a compare and contrast process. This way, the datasets support one another, bringing about a complete picture of the research question posed [28]. Figure 2 below illustrates an overview of this research design. Following this, the background information on the data collected from the 17 organisations in this research is tabulated

Empirical Study Design
Previous research has established the critical aspects of a selection process from the perspectives of both hiring members and applicants [18]. Based on the results obtained, the platform was set in this study to explore further the identification of the dominant factors to be considered for improving the selection process of recruitment systems. Specifically, this paper investigated the empirical evidence in supporting the dominant factors for the employee interview and selection process with the potential to enhance the recruitment systems.
Based on the research design for this study, as outlined in Section 2.2. above, both the probability and non-probability techniques of sampling were used for this research. The stratified sampling method, which uses some known characteristics of the participant, was utilised for this study. This was in the form of identifying human resources professionals and executives who represent their institutes in the VTA forums since their subject knowledge and practical exposure are associated with a direct impact in this study. Additionally, under the non-probability technique, snowball sampling and homogeneous purposive sampling were used. One of the main criteria for shortlisting participants for this study involved the capacity of the participant to contribute to the research finding, which is possible only if they have undergone the employee selection process of a TAFE. By implementing this judgemental step, we ensured that only the current and past employees in any position of a TAFE were included in the study, and the homogeneous purposive sampling technique was used. The overall sample size, even after using these sampling techniques, would be quite challenging to manage due to the size and, therefore, quota sampling was implemented. The maximum participants from the urban area were set to five from each organisation, and for the regional area, it was set to two from each institution. This resulted in 50 participants from the urban area and 14 participants from the regional area with 64 targeted participants. However, during the fieldwork, a few more interested participants volunteered to undergo face-to-face qualitative interviews. Likewise, for the survey, the target responses were fixed at a minimum of 10 members per institution for the urban area and 5 responses for the regional area which totalled to at least 105 participants from all TAFEs to enable representability and generalisability of the population. Table 2 below lists the 17 VTA members that were identified to be part of the Victoria TAFE sector and operating in either urban or regional Victoria. Both current and previous employees of these institutes were invited to participate in this empirical study. Victoria Polytechnic There were 74 interviews for qualitative data and 204 individual survey participants for quantitative data from these 17 organisations. The total number of participants from the qualitative and quantitative methods with their individual personal experiences are tabulated in Table 3. It outlines the number of participants per organization (with the names coded) for the face-to-face semistructured interviews as part of the qualitative data collection. Likewise, for the online survey, the participants were requested to recollect their experiences during instances when they were taking the role as a successful applicant, unsuccessful applicant, or a hiring member which resulted in 605 unique such instances. As the focus of this study was on the experiences in the TAFE/dual-sector alone, the 52 instances forming a non-TAFE-based experience were categorised as "other" and were removed from the analysis. However, in this category, the 27 responses collected from unsuccessful participants were retained after a confirmation upon a preliminary examination of their organisations, whether related to the service or the education sector in Australia. The final set of valid data prepared for this analysis from the survey consisted of 553 total experiences combining successful, unsuccessful and hiring member perspectives. This information (N) on the quantitative and qualitative data collected is tabulated in Table 3 below. A conscious effort was undertaken to encourage participation and to ensure equal representation from both genders in this study. Table 4 below gives the gender distribution of the survey participants. The age distribution of the participants in this study was spread across a wide range from the ages of 25 to 74. Most of the participants (39%) belonged to the age group 55-64 and closely following that age range was the age group 45-54 (31%). Table 5 below presents the frequency distribution across the age groups of all the participants in this study.  Table 6 below provides the distribution of the citizenship status of the participants. It demonstrates that most of the participants (90%) are Australian citizens, a smaller number are permanent residents of Australia (8%), and a minimal number of participants (2%) were categorised as "other". This information assisted in establishing the homogeneous nature of the participants in the context of their working rights in Australia. Therefore, their responses may not be affected by any changes in the immigration rules related to the work permits. This ensures that an unbiased response was obtained from the participants focusing only on the nature of the employment and the selection process for their employment without much effect from work permits and other external immigration-related information. Previous work [18] analysed a few critical aspects using the hypothesis testing technique from the perspective of a hiring member and successful or unsuccessful interview applicant. In continuing that, this section attempted to explore all the variables used in this study in association with the hiring process. It assists in finding the results to the research question, which is related to identifying the dominant factors in the hiring process, as outlined in Table 7 below. These questions were carefully selected to align with the current literature also related to using expert systems in HRM. This section presents the findings in two parts: the first part involved the use of exploratory factor analysis as a quantitative technique, and the second part involved the use of thematic analysis as a qualitative technique to establish the dominant factors. In conclusion, a comparative analysis of both findings was completed as part of the data triangulation to establish the reliability and validity of the results reported. Finally, we present how both techniques taken together provided evidence to address the research question.

Quantitative Analysis: Exploratory Factor Analysis
From the previous study [18], the findings show that the results were significantly similar in all the critical aspects as shortlisted for this study, irrespective of the applicant being successful or unsuccessful. In this study, we further perform the exploratory factor analysis (EFA) that takes into account the successful applicant's experience and the hiring member's experience along with their responses to proposed improvements as provided in the survey. Table A1 in Appendix A presents questions related to the hiring process from the perspective of the hiring member (HM) and the hired successful applicant (HS) along with improvements to the hiring process (HP) with the frequency value. The responses are provided using the Likert scale from 1 to 7, where 1-strongly agree, 2agree, 3-somewhat agree, 4-neither agree nor disagree, 5-somewhat disagree, 6-disagree and 7-strongly disagree. This tabulated information on the mean needs to be understood in reference to the 7 points Likert scale provided in this section.
The 38 variables listed in Table A1 in Appendix A are processed using the exploratory factor analysis technique for finding dominant factors. This technique was used to arrive at the meaningful factors that can be listed as dominant factors, which could then be considered in improving the effectiveness of the employee selection interview process. An EFA assesses the number of factors that are common in a survey instrument that impacts its measures and examines the association among each common factor to the equivalent measure and the strength of that factor [29]. Researchers use exploratory factor analysis for various purposes: i) to detect the constructs' natures that prompt responses in a survey; ii) to decide on interconnected sets of items; iii) to establish the breadth and depth of measurement scales; iv) to organize the most significant features in that group of items; and v) to produce factor scores that signify fundamental ideas [29]. Further, EFA is considered as an appropriate multivariate statistical approach to assist with data reduction, to explore associations among categories, and in estimating the measurement scales' construct validities [30]. Exploratory factor analysis consists of a sequence of statistical steps for analysis. The first step is the planning step, where the suitability of the data for an EFA is determined by checking the sample size to establish a reasonable factorability followed by generating a correlation matrix and conducting a test to measure the sampling adequacy. The second step involves extracting the factors using principal axis factoring (PAF), which is the conventional method of extraction for EFA, or principal component analysis (PCA), which is another method of extraction in EFA, both of which were used in this paper. The third step requires determining a fixed number of factors to retain. The fourth step contains factor rotation with varimax as the commonly used rotation method. The fifth step consists of interpreting the factor structure and assigning new labels [31].
As outlined above, primarily, an examination for determining the factorability of the 38 variables listed in Table A1 in Appendix A was carried out. Initially, 36 of the 38 items were detected to be correlated with at least a value greater than 0.25 with one other item, thereby establishing a reasonable factorability. Furthermore, the Kaiser-Meyer-Olkin measure of sampling adequacy resulted in 0.807, as demonstrated in Table 8 below, which is higher than the generally suggested value of 0.5, and the Bartlett's test of sphericity established the significances with 0.000 for the 38 variables processed and confirmed the adequacy of the required sampling. Additionally, the communalities tables from SPSS, as outlined in Table A2 in Appendix A using the PAF method for extraction in the initial communalities, were all above 0.3, further confirming that each variable had some common variance with other variables in that

Bartlett's Test of Sphericity
Approximate chi-square 2486.455 df 703 Significance 0.000 After establishing the EFA technique to be an appropriate statistical testing tool for this dataset, the results obtained by conducting EFA for the 38 variables were summarised (Table A3 in Appendix  A). Table A3 provides the tabulation of the variables against the total initial eigenvalues (highlighted in blue) which indicate that the first five factors described up to 26%, 8%, 7%, 5%, and 5% of the variance individually (% value highlighted in green). The sixth to the eleventh factors had initial eigenvalues just over one and individually described close to 3% of the variance. Apart from these first 11 factors, the remaining factors from 12-38 had a total initial eigenvalue less than 1.0 and, therefore, needed to be removed from further analysis. This resulted in the 11 shortlisted factors that were retained for further processing. The results for all the eleven factors were individually studied using oblimin and varimax rotations of the factor loading matrix. The identified eleven factors explain close to 70% of the variances in the dataset and is illustrated by a scree plot in Figure 3 below. It shows the "levelling off" of eigenvalues after eleven factors and the inadequate frequency of primary loadings and difficulty of interpreting the twelfth factor and subsequent factors as mentioned earlier. There was little difference between the oblimin and varimax solutions; therefore, both rotations were examined before deciding to use a varimax rotation for the final solution as it is a popular rotation method for EFA. Overall, using the EFA techniques, we could reduce the 38 variables to 11 components that were above an eigenvalue of 1.0; this is illustrated in the scree plot in Figure 3 above and the variance Table  A3 in Appendix A. In other words, 27 items were disregarded due to the fact of their non-contribution to the simple factor structure. In addition, it failed to meet the minimum criteria for avoiding a crossloading of 0.3 and a primary factor loading of 0.4. The items related to improvements in the hiring process such as "HR can collect feedback/suggestions on interview experience from applicants" and "constructive interview performance feedback should be provided", did not load above 0.3 on any factor. In the same table where the total variance was explained with initial eigenvalues, the items "promote an objective and standard model for the hiring process across all TAFE" and "always have an HR representative during interviews to ensure standard/consistency" had factor loadings around 0.3 on only one other factor.
The 11 factors identified as outlined in the scree plot above are listed with the variables grouped in each factor using the varimax with Kaiser normalization rotation which provided the best-defined factor structure. All items in this analysis had primary loadings above 0.4. In order to confirm that the 11 factors retained from PAF were correct, the PCA was also conducted, and the results had the same 11 factors extracted. All 11 components grouped as the case processing summary holding similar variables to the PCA were verified to match with the output from PAF and were processed further for the Cronbach's alpha test. The results are tabulated in Table 9 below. From this table, it is evident that six cases reported a reliability scale being <0.7, negative, or single variable grouping and, therefore, were disregarded from further analyses. Using the results from the reliability statistics in Table 9, five exploratory factors with a reliability scale of more than 0.7 were identified to be reliable (in bold), as shown in Table 9 below. The EFA components grouping now required five new labels for identification. The resulting five components from the EFA techniques were labelled based on the variables contained in each case-processing summary. For this purpose, the rotated component matrix in Table A4 in Appendix A was used to understand the contributing nature of the survey questions towards the 11 components identified. The resulting five reliable components from Table 9 above are labelled as outlined in Table  10 below.

Qualitative Analysis-Thematic Analysis
Following the quantitative analysis in the previous section, this section now examines the data collected from a qualitative perspective using a thematic analysis. In particular, it provides evidence for the data triangulation, considering the similarity in the data provided in Table 10 above and Table  11 below. The semi-structured interviews with 74 participants for an average duration of 45 min involved participants answering approximately 25 questions. Using NVivo software, the transcribed data were assigned preliminary codes which were developed using keywords from the interview question and were descriptive of the content. Additionally, there was a systematic analysis for patterns and themes across all interviews, which finally resulted in 35 such relevant codes that were identified for this study. This was later grouped into different categories based on the similarity and association of the content resulting in six different categories as evidenced in Table B1 in Appendix B. Using thematic analysis of NVivo, this was further analysed and reviewed for broad themes based on the features being discussed thereby establishing dimension reduction which resulted in three themes. Information related to the list of codes, categories, and themes with their relevant association to each other is presented in Table B1 in Appendix B for reference. Overall, these manual and indepth analyses have resulted in 31 codes, 5 categories, and 3 themes. Furthermore, the five categories extracted using the thematic analysis are summarised in Table 11 below and suited the extracted factors in the EFA, thereby establishing data triangulation, as discussed earlier. The above two quantitative and qualitative analyses confirmed, indicating that the five distinct factors listed from each method based on the responses of participants in the selection process established moderate and internally consistent findings with evident data triangulation. Using the quantitative and qualitative analysis, it yielded similar results, thereby establishing that the results were satisfactory and acceptable. The five dominant factors to be considered in improving and ensuring proper standards in the employee selection interview process were: • Training the hiring members for the interview process; • Planning and preparing for the interview process; • Removing the bias of the hiring members during the interview process; • Providing feedback to applicants to ensure a transparent process; and • Ensuring the hiring decisions are process-driven instead of driven by the interviewer's personality.
Despite operating in a developed country, the use of technology in this sector to help with the decision making in the selection interview process was limited or nil. Due to the lack of training and technology, hiring members suggested some useful methods. On the one hand, these suggestions could bring enhancements to the recruitment process. On the other hand, due to the variations obtained from different participants, a further in-depth study is required to determine the consistency for bias that may exist.
In response to the interview question "Do you have any recruitment management systems that you used or was it just emails and paper-based?", most of the 74 participants responded negatively; participants 12, 22, 28, 30, 31, 38, and 39 were some of the many who had commented that the process relied only on "email-and paper-based" methods. However, there were a few of the 17 organisations that seemed to have this worked out, which was appreciated by some hiring members, such as P11 who stated: "At [withheld], we use [withheld] on our website, and people can see our positions. So, they apply for our position online, and then our interview process is managed through that recruitment module through the back end. We know which people are shortlisted. We can see where people are at through the stages. That way we can see if they are unsuccessful quite early or we can see if they progress through to the interview stage, etc." Using NVivo, a word frequency of the responses to the use of recruitment systems in each participant's HR department was calculated. The results obtained from NVivo are given in Figure 4 below. There appears to be a good acceptance and eagerness among participants for the implementation of HR expert systems, as highlighted in red in Figure 4 below. This refers to the current practice of using paper and emails only with a positive response and reasons for adopting recruitment systems noted as follows:

Summary of Findings and Discussion
This section aims to summarise how the research question of this ongoing study was addressed by providing an analysis of the dominant factors involved in the consideration for improving the selection process. We analysed the results and the key empirical findings of this research by including the statistical data analysis (quantitative) as well as the narrative data analysis (qualitative). The five dominant factors that were identified for improving the employee selection process are discussed. Prior to discussing the specific dominant factors for improvement of the selection process, this section begins with a review of the findings based on all the factors associated with the selection process and provides more in-depth insights and the reasoning behind the grouping and clustering of some factors in order to form the dominant factors.
An overall review of this study's findings demonstrates 38 individual elements used for analysis associated with the employee selection process. It shows clear indications in the results that there was a strong correlation among multiple elements that assess the different stages of the selection process. The EFA technique was used to effectively process the data further to perform data reduction by associating the correlated elements that cluster together to form a group. The data was reduced to 10 possible groups with the other elements listed within each associated group. Each group was renamed based on the elements it held for a most suitable indication of the group name. Interviewer Training was the name given to a group that consisted of seven elements such as the length of the interview; having relevant interview questions; being prepared for the interview; ensuring equal panel participation; using an appropriate interview method; having qualified interviewers; interviewers organised with the conduct of the proceeding. The results of this group, with the seven elements, collectively report 90% reliability. This finding aligned with existing literature and was also evident from its popularity of usage relating to the necessity for training of the interviewer and the applicant [32][33][34][35]. The next group was renamed as Planned and Structured Interview Process which consisted of six elements such as providing interview questions for structured interview; allocating sufficient preparation and planning for the process; appointing qualified and relevant interviewers; hiring member's confidence in the overall process; total duration for the selection process; and the promptness of arriving at the final selection decision. The results of these elements collectively formed a new group which was found to be 82% reliable. The third group was called Bias in the Interview, and it consisted of three elements such as the interviewers' bias on gender, religion, and ethnicity which collectively reported a 91% reliability of belonging to this group. The fourth group was named as Interviewer's Personality and Fit, consisting of three elements such as the interviewer's temperament impacting on the panel's decision; the interviewer's personality and attitude impacting on the selection decision; the interviewer's preference for unstructured interviews. This group reports a reliability score of 71% with these three elements. The final group was called the Interview and Transparency, as it consists of two elements which were associated with the formation of the panel interview and seeking transparency. These elements reported a 78% reliability of being combined in the same group. In summary, these were the top five groups that had a reliability score > 70% and, therefore, are listed as the dominant factors that need to be considered in improving the selection process.
The findings in this empirical study also support previous research which has found these elements as important factors in establishing a robust talent acquisition process in an employee selection system [36]. What further emerges from the findings is that, as part of the data triangulation, a qualitative analysis was carried out simultaneously, and the results from the qualitative analysis were consistent with the results reported using the quantitative analysis approach. It thereby confirms the validity and reliability of the key findings for the research question in this study. In the qualitative analysis, 31 individual codes were identified, which were further grouped into six different categories based on the similarity of their nature. The six categories were the hiring members involvement; interview process enhancements; variation of bias in interviews; interview process problems; applicant feedback; and external association to the interview process. These six categories were further classified into the emerging three themes: • Ensuring the integrity of the interview selection process; • Enhancing the applicant feedback process with enriched information; and • Contributory elements towards the overall satisfaction of the interview selection process.
The first five categories from the qualitative analysis aligned very closely with the five factors resulting from the quantitative analysis that demonstrated the close similarity among both findings. This information is summarised and illustrated in Figure 5 below. Responses to all questions from all 74 participants were processed by NVivo software to find the Pearson's correlation for word similarity. This resulted in exposing the current lack of expert systems in this sector and the positive reception by participants to adopt a more system-based decision for the employee selection process. From this study, we can arrive at the following concrete improvements to the recruitment system that create evidence-based recommendations for change in the selection processes: • Ongoing training should reinforce that discriminatory questions cannot be asked; • Include an HR/neutral representative on the committee; and • Rather than necessarily providing feedback, perhaps the HR role should be to obtain feedback on the process from unsuccessful applicants for each position.
In summary, this paper carried out further research based on our previous study, which attempted to uncover the critical aspects of the employee selection process [18]. Technological assistance was one of the key critical aspects brought into the limelight by the hiring members. By correlating the findings reported in the previous work that were found in tandem with the discussions in this paper, the results were well justified. The identification of the five dominant factors in this study-namely, training, planning factors of the interview approach, avoiding bias, influence by the interviewer's personality, and establishing panel interviews for transparency-have perfectly synchronised with our previous related research investigations.
We observed some of the shortcomings in the process found in this study that is summarized here. The relatively low standard of the hiring process was shown when the quality of the shortlisted candidates could not be quantified. With the help of customized expert systems, some organizations could manage to substantiate the quality of the candidates in the hiring process. However, since such a system is required to be well customized, the limitation could be in the language that is probably understood only within that organization. Introducing a standard model that could be used across all 17 organizations in this sector would establish a common language. This measure will also serve the candidates to understand their level of individual and non-subjective performance when they ask for feedback from the hiring team. These findings are in line with the arguments presented by other researchers from various associated fields, such as an open communication method in organisations between the organization and its stakeholders [37]. A systematic approach which indicates "how much better" or worse the candidate was to the hired person, would denounce any subjective personal interpretation of the hiring managers. It is imperative to undertake a systematic analysis of the process to determine the type of person to be hired. The outcome of such an in-depth analysis could be used to prove the reliability and validity of the hiring process. The cost to organisations of using poor recruitment techniques or selecting someone who does not last long with the organisation or even selecting an unsuitable person who stays with the organisation could have an extraordinarily significant negative impact on the organisation in terms of morale, cost, and potential loss of revenue [3]. In this context, Cook and Cripps [38] present the various psychological assessment techniques used for selection and identify only those that are worth using.

Conclusions and Future Research
This paper presented the findings of an exploratory study conducted to determine the dominant factors of the employee selection process for achieving a robust recruitment system. The empirical study consisted of 17 organisations from an Australian TAFE/dual-sector, and a mixed-method of both quantitative and qualitative survey analysis was adopted to study the use of technology and management systems for the employee selection process from various perspectives of participants including hiring members and successful and unsuccessful candidates. The findings from the EFA and NVivo analytic tools revealed five dominant factors of the selection process, such as training, planning factors of the interview approach, avoiding bias, influence by the interviewer's personality, and establishing panel interviews for transparency, have not only confirmed with the critical factors revealed from our previous investigation but also successfully cleared the data triangulation for reliability and validity of results. These findings align well with existing literature in promoting the need for developing a selection decision tool for organisations taking into consideration the fundamental factors outlined in this study.
This study acknowledges some of the limitations within which the research was carried out that would lead to future research associated with this topic. This study followed a cross-sectional timeframe with data presented to that period only instead of a longitudinal study over a broader ongoing timeframe for analysing the selection process in this sector. The study may be subjected to partial perspectives where inferences were drawn based only on those who participated in this study, while the non-participants may have a completely different opinion on the organisations' selection processes. It would help to enhance the reliability and validity of the findings if the entire population of the sector was included. Bearing in mind these limitations, future research to conceptualize a consistent selection decision tool addressing these dominant factors through an expert system can be undertaken. This will enable actualizing a decision-making tool to assist hiring members while providing room for a structured and unstructured interview that is in-line with the emerging mixedmethods interview process across all positions in an organisation. Future research investigation would explore the possibility of building a conceptual model to assist hiring members in the selection process taking into consideration the critical aspects outlined in the previous paper and the dominant factors presented in this paper.

Conflicts of Interest:
The authors declare no conflict of interest.

Appendix A
This section contains a proof of results which are SPSS-generated tables for the exploratory factor analysis.