Purpose – The study aimed to test the validity and reliability of the Polish version of the identity leadership inventory (ILI) proposed by Steffens, Haslam, Reicher et al. (2014) and to confirm the relationship between identity leadership and various job-related outcomes (i.e., trust in leaders, job satisfaction, work engagement and turnover intentions) among employees from Poland-based organizations. Identity leadership appears to be a universal construct (van Dick, Ciampa, & Liang, 2018) but no one has studied it in Poland so far.
Design/methodology/approach – The sample consisted of 1078 employees collected in two independent subsamples from different organizations located in Northern and Central Poland. We evaluated the ILI’s factorial structure using confirmatory factor analysis.
Findings – The results confirm that the 15-item Polish version of the ILI has a four-dimensional structure with factors representing prototypicality, advancement, entrepreneurship and impresarioship. It showed satisfactory reliability. The identity leadership inventory-short form (four items) also showed a good fit with the data. As expected, the relationships between identity leadership and important work-related outcomes (general level of job satisfaction, work engagement, trust toward the leader and turnover intentions) were also significant.
Originality/value – Despite the cultural specifics of Polish organizations, the research results were generally very similar to those in other countries, confirming the universality of the ILI as shown in the Global Identity Leadership Development project (GILD, see van Dick, Ciampa, & Liang, 2018; van Dick et al., 2021).

Purpose – The research investigated relations between factors used to evaluate the quality of buyer-supplier relationships (BSRs): perceived performance of the supplier, satisfaction with supplier, and trust in the supplier; and to develop an instrument to evaluate BSRs (a BSRs evaluation scale).
Design/methodology/approach – We applied the psychometric testing of the BSRs measurement using exploratory factor analysis and confirmatory factor analysis. We applied structural equation modeling (SEM) to understand the interrelations of factors underlying BSRs.
Findings – The BSRs evaluation scale consists of three factors: perceived performance of the supplier, satisfaction with the supplier, and trust in the supplier. The results provide empirical evidence of the validity, reliability, and generalizability of the presented measurement.
Originality/value – The study developed a novel measurement instrument that integrates BSRs’ multidimensional constructs. It explains and confirms the significant roles of satisfaction with the supplier, trust in the supplier, and perceived performance of the supplier in shaping the BSRs’ quality. Furthermore, we provide evidence that in BSRs goodwill- and competence-based trust integrate into a single factor.

Purpose – The article aims to present the results of adapting the team boosting behaviors (TBB) scale to Polish cultural conditions and validating it.
Design/methodology/approach – The research methodology consisted of three steps. In the first step, I translated the TBB scale into Polish using a rigorous back-translation method. Next, to assess content validity, nine domain experts reviewed the initial version of the instrument for clarity and relevance. Finally, I applied the scale to a sample of 532 team members and underwent thorough psychometric testing to assess construct validity. I employed structural equation modeling (SEM) with the partial least squares (PLS) factor-based algorithm technique for confirmatory factor analysis to assess the scale’s reliability and validity. Findings – After development, the Polish version of the TBB scale kept its three sub-scale structures. However, the validation process led to a slight reduction in the number of test items compared to the original scale.
Research limitations/implications – The findings imply that the Polish version of the scale is a valid and reliable tool for assessing TBB. However, I recommend additional studies to confirm this instrument’s structure.
Originality/value – The results confirmed the reliability and relevance of the tool for measuring TBBs in Polish cultural conditions. The tool provides the basis for implementing further research with the TBB construct in Poland and internationally.

Purpose – The authors aimed to identify the opinions of young adult consumers regarding food processing companies’ (FPCs) credibility in terms of food safety (FS).
Design/methodology/approach – The authors surveyed Generation Z (GenZ) consumers. The authors assessed the reliability of the research questionnaire using Cronbach’s alpha statistics. The authors used descriptive statistics and one-way ANOVA analysis of variance in the data analysis to determine intergroup variability. The authors performed statistical analyses using IBM SPSS Statistics. 27.
Findings – The most valued determinants for consumers were competence and skills, and the most valued family members’ opinions on FS, followed by experts’ opinions. FS concerns are more associated with FPCs than with farmers. The ethics of conduct and moral responsibility play an important role in assessing the FPCs’ credibility.
Research limitations/implications – The questionnaire did not focus on specific food industries, such as fruit and vegetables, fish, meat, dairy, etc. In the future, a similar survey on producers’ credibility should consider the issue of FS risks associated with the specifics of a particular industry.
Originality/value – The authors proposed a set of factors that may determine young adult consumers’ perception of the FPCs’ credibility, which they may use for research within other consumer groups.

Purpose: This study aims to verify the quality of the teacher competency inventory as a pedagogical competencies measure of teachers in higher education institutions.

Design methodology: The development and testing of the teacher competency inventory covered three phases: (1) item generation, (2) dimension identification and data reduction (factor analysis), and (3) scale evaluation. The current study tests its construct validity, using an independent samples t-test, variance analysis, and Anova in two different environments.

Findings: Results indicate that the inventory measures unitary constructs and provide its predictive capacity. The developed instrument measures levels of future-oriented pedagogical competencies with comparable reliability and validity.

Practical implications: Teacher competency inventory may be applied to teachers’ recruitment, selection, development, and performance evaluation with the goal to identify current and required levels of competencies. The inventory allows one to compare teacher competencies with the expected competency profile. Possible differences may indicate deficits or overruns in relation to the expected profile.

Originality: Teacher competency inventory is a meaningful tool to improve human resource practices – including recruitment, selection, and teacher performance monitoring – and to indicate the current and required level of competencies. The identified competency gap can help plan teacher development to increase job performance.

Purpose: In supply chains, creating a secure space for data production, sending, storing, and analysis has always been a critical issue. The main goal of this research was to evaluate the importance of various security criteria in an intelligent supply chain system.

Methodology: The main data collection method was the expert survey. Experts validated the security criteria and sub-criteria. Then, the importance of these criteria was evaluated using the fuzzy analytic hierarchy process method.

Findings: The results revealed that reliability and privacy with their sub-criteria were the most important ones among the obtained security criteria for IoT-based supply chain management.

Practical implications: The research results can provide valuable insight for supply chains’ decision-makers. The findings can also be a good reference point for researchers who work on the IoT-based supply chain concept in other countries and sectors.

Research limitations: Limitations of this study are the purposive sampling method and the limited scope of studied companies and sectors. Therefore, the article provides initial insight on the matter.

Originality: The study presents the research problem from a new perspective and gives possible solutions for IoT-based supply chain management.

Purpose: The purpose of this paper was to indicate which information originating in accounting is important for ensuring the information transparency of bankruptcy proceedings.
Methodology: Based on the literature review and the analysis of international legal acts, we determined priority types of information from accounting used in bankruptcy court proceedings. These types included information on the costs of insolvency proceedings, the assumption in the financial statements that there was no going concern, and the book value of assets. A survey was then conducted on a group of specialists in the field of bankruptcy.
Findings: Respondents indicated information on the costs of bankruptcy proceedings as the most important. However, other accounting information under study also received a high assessment from insolvency specialists. The obtained assessments of individual quality features are characterized by high reliability confirmed by low standard errors.
Research implications: Accounting evolves as a response to the information needs of accounting information users. Therefore, knowing these needs may contribute to changes in the requirements regarding the scope of information from accounting that is used in bankruptcy proceedings.
Originality/value: In-depth knowledge of various aspects of the economic side of the bankruptcy phenomenon is part of the current trend in minimizing the negative effects of bankruptcy.

Purpose: Gratitude is an interdisciplinary concept frequently explored in positive psychology, which recognizes gratitude as one of the seven transcendent character forces that promote well-being and life satisfaction. The purpose of the conducted research was to develop the concept of gratitude toward the organization and prepare a tool to study this phenomenon.

Methods: The study was cross-sectional. Participants were 802 employees from various organizations.

Results: The Gratitude Toward the Organization Scale has a good internal consistency (Cronbach’s α was 0.91). Factor analysis confirmed the two-factor structure of this tool. The dimensions of gratitude toward the organization are distinguished as: (1) gratitude as a commitment to reciprocity and (2) gratitude as a moral norm. The construct validity of this measure was confirmed. Gratitude toward the organization correlated positively with job satisfaction, affective commitment to the organization, organizational justice, and perceived organizational and supervisor support, while being negatively correlated with intent to leave the organization.

Conclusions: The obtained results confirm very good psychometric properties of the Gratitude Toward the Organization Scale as a valid and reliable measure for studying the gratitude of employees, which can be successfully used by researchers in Poland.

Purpose: Analysis of theoretical views and empirical research concerning the relation between IT reliability and the innovation level of organizations. Implications: Findings enable us to indicate the direction of further promising research that should concern the relationship between IT reliability and innovation in the context of stages of the innova tion process and different types of innovation, which should be analyzed separately.

Methodology: The pilot (sample: 100) and main (sample: 400) survey was conducted in 2017 among SMEs located in Poland. Findings: The empirical analysis shows that there is a relation between IT reliability and innova tion level. Moreover, information reliability appears as a factor that may influence the organization’s ability to create innovations. Furthermore, service reliability proves to correlate with innovation level as well, which provides additional conclusions that support the realization that service is an important feature, which may also influence employees’ ability to employ IT appropriately and efficiently, thereby supporting the generation of innovation.

Value: The article presents a new factor that may influence the possibility of creating various types of innovations. Usually, papers focus on IT systems, while the relationship between IT reliability and innovation allows us to look deeper into this relationship.

Purpose: The aim of this study is to review the effects of psychological capital on employees’ burn out in the work environment. This research is paired with Self-Efficacy Theory, which emphasizes that the results of efforts and performances are the most significant sources of self-efficacy.

Methodology: Data collected from 416 Turkish workers employed at public institutions in Turkey were included in the analyses to identify the effects of psychological capital on burnout by using two different types of scales (burnout and psychological capital scales) into a single questionnaire form with Likert-type response scale. Beside the Reliability Analysis, different statistical valuation methods –such as regression and correlation analyses– have also been used.

Findings: The results of analyses conducted on the sample of 416 Turkish workers reveal that statis tically significant relationships appear between self-efficacy and depersonalization, hope and low personal accomplishment, optimism and emotional exhaustion, optimism and depersonalization. Optimism is negatively related to emotional exhaustion and depersonalization while positively and insignificantly related to low personal accomplishment. Both self-efficacy and optimism are signifi cantly effective in explaining depersonalization. Hope positively and significantly contributes to explain the low personal accomplishment level of employees. On the other hand, optimism negatively and significantly contributes to emotional exhaustion.

Implications: As found in the results of this research, optimism will decrease emotional exhaustion. Resilient people can more easily adapt to changes in life. Organizations may focus not only on improv ing organizational structure but also foregrounding workers’ positive personality traits and healthy psychological capital systems.

Value: This research which emphasizes the effects of psychological capital on burnout levels of em- ployees is as valuable as others in relevant literature with different research results which are more valuable than the other.

Purpose: This study is a contribution to the validation of the Motivation to Lead (MTL) scale proposed by Chan and Drasgow (2001) in order to measure three types of motivation to be a leader: affective, social-normative and calculative. This research examines the psychometrical properties of the MTL scale in the Estonian context.

Design/methodology/approach: The sample of 517 military and non-military individuals from the Estonian Defence Forces, Estonian Police and students from Tallinn University participated in the study. The original MTL scale was expanded by with the addition of ideological and patriotic dimensions proposed by Amit and colleagues (2007). The factorial structure of the MTL Scale was analysed by using exploratory and confirmatory factor analysis (respectively N = 170 and N = 347).

Findings: The results confirmed that both three- and five-component MTL scales are applicable in the Estonian context; the pool of 35 items was reduced into 25 items with good internal reliability. Moreover, the results showed correlations between leadership self-efficacy and MTL components, and differences between leaders’ and non-leaders’ MTL. The results indicate that the MTL scale can be a reliable and useful instrument to measure leadership motivation in the Estonian military context.

Originality/value: This study is the first to adapt the MTL scale to the Estonian context. In addition, it examines the validity of ideological and patriotic MTL as part of the general MTL construct outside of the Israeli samples.

Purpose: This paper aims to match subjective and objective measures of organizational innovativeness and test correlative relationship between the two.

Methodology: The research adopts a quantitative approach, and applies correlation analysis to identify interdependencies. The study has been done in the aviation industry, as organizational innovativeness has so far been described especially in high-tech industries – however it has not been investigated within aviation industry yet.

Findings: The results show that the discussions over reliability of research based on subjective measurements techniques are not unfounded. The evidence suggests that subjective measures are not correlated with objective measures, and the outcomes of third-party investigations differ considerably. Therefore decisions about measurements techniques should be deliberate, thought out, theoretically grounded and justifi ed. In general, methodological recommendations provided by this paper could be boiled down to the ascertainment that accurate and reliable assessment of organizational innovativeness should use a set of objective measures addressing all stages of the innovation process.

Originality: It should be noted that this study was restricted to only one industry and prone to some common bias. The aviation industry sample was relatively small and purposefully selected, disallowing conclusive statements made outside of this empirical setting. However despite the limitations this paper provides some signifi cant contribution to evaluation and research on innovativeness. It compares two approaches to measurement and empirically proves which approach is more suitable in case of such a highly innovation-intensive sector like aviation. Moreover, it introduces a new in Polish research tool for subjective assessment of organizational innovativeness namely the questionnaire developed by Wang and Ahmed (2004).