Handbook of Employee Commitment
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Handbook of Employee Commitment

Edited by John P. Meyer

A high level of employee commitment holds particular value for organizations owing to its impact on organizational effectiveness and employee well-being. This Handbook provides an up-to-date review of theory and research pertaining to employee commitment in the workplace, outlining its value for both employers and employees and identifying key factors in its development, maintenance or decline. Including chapters from leading theorists and researchers from around the world, this Handbook presents cumulated and cutting-edge research exploring what commitment is, the different forms it can take, and how it is distinct from related concepts such as employee engagement, work motivation, embeddedness, the psychological contract, and organizational identification.
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Chapter 32: A contemporary update on testing for measurement equivalence and invariance

Robert J. Vandenberg and Neil A. Morelli


Inherent to commitment research is the need to test change or differences in attitudes between groups or across time. A fundamental assumption of these tests is that commitment measures assess constructs equivalently, or are invariant, between groups or across time periods. Understanding how to test this assumption not only helps determine the quality of commitment measures, it also offers opportunities for testing substantively meaningful research questions. Due to the importance of this assumption to commitment research, this chapter revisits and updates Vandenberg and Lance’s (2000) seminal summary of the recommended measurement equivalence or invariance (ME/I) testing steps using confirmatory factor analysis. The chapter also alerts commitment researchers to easily overlooked, yet important issues related to ME/I testing, citing specific examples from the commitment literature as illustrations. Finally, a discussion of ME/I testing using item response theory is provided for comparative purposes. Reference: Vandenberg, R.J. and Lance, C.E. (2000). A review and synthesis of the measurement invariance literature: Suggestions, practices and recommendations for organizational research. Organizational Research Methods, 3, 4_70.

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