Most previous research on transformational leadership involved the use of the "Multifactor Leadership Questionnaire" (MLQ) to measure various aspects of transformational-transactional leadership. Although the MLQ is widely used, the instrument has been criticized in some areas of its measurement factors. In this study, three proposed models were tested by Confirmatory Factor Analysis (CFA) using the multi-data source of 138 cases. Results revealed that the overall fit of the nine-correlated factor model, on its second test, was statistically significant and that indicated that the Full Leadership Model (nine-correlated leadership model) could be the most appropriately and adequately capturing the factor constructs of transformationaltransactional leadership.

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Purpose Employees’ job engagement is a key driver for organizational success and competitive advantage. Based on Kahn’s engagement theory and social exchange theory, the purpose of this paper is to examine the relationships between job engagement, transformational leadership, high-performance human resource (HR) practices, climate for innovation, and contextual performance. Design/methodology/approach A questionnaire survey, conducted at two different points in time, was employed to collect data from 394 pairs of Vietnamese university academics and their leaders. Data were analyzed by structural equation modeling (SEM) and multilevel SEM using the Statistical Package for Social Science Version 24 and Mplus Version 7.4. Findings The findings indicated that transformational leadership and high-performance HR practices were key drivers of employees’ job engagement. A climate for innovation contributed effectively to mediate the effect of transformational leadership on employees’ job engagement. Further, employees’ job engagement was positively and significantly related to contextual performance. Research limitations/implications The short time lag between the two data collection phases might limit the ability to reach definite causal conclusions. Future research using a longitudinal design is needed to provide stronger validation for the underlying model. Originality/value This study is a rare attempt that investigates the process from which employees’ job engagement is generated and contributes to improve contextual performance in the higher education sector.

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In an attempt to develop a means for researchers to reach a common understanding of the substantive meaning of diversity, this article first reviews different approaches to diversity conceptualizations, identifying three common threads that are incorporated in various diversity definitions. Our discussion examines the variety of diversity conceptualizations by addressing the three key aspects that present two general trends that emerge in the literature. We then propose a framework to unify the fragmented definitions and understandings of diversity. The implications for practice and future research are also discussed.