Psychometric Evaluation of Age Discrimination Measures Using Classic Test and Item Response Theories

Yisheng Peng, Hanyi Min, Alexa Rosenblatt, Wenqin Zhang

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Although workplace age discrimination research has been recognized as increasingly important, much less agreement has been reached regarding the operationalization and measurement of age discrimination. There are multiple age discrimination scales, yet no systematic investigation of potential convergence across those scales exists. We conducted two investigations of age discrimination scales that differ in multiple measurement characteristics (e.g., content domain). Findings of confirmatory factor analyses from Study 1 (N = 248) indicated that although different age discrimination scales were related to the same higher-order construct, they were not interchangeable as they each accounted for idiosyncratic measurement variance. The usage of different scales resulted in different magnitudes of the relationships between age discrimination and its correlates. In addition to the replication of these results in Study 2 (N = 939), an item response theory approach was applied to demonstrate that different age discrimination scales possess different levels of test information at different places of the latent trait continuum. Taken together, our findings provide implications for researchers to thoughtfully choose their operationalization of age discrimination.

Original languageEnglish (US)
Pages (from-to)118-135
Number of pages18
JournalWork, Aging and Retirement
Issue number1
StatePublished - Jan 1 2023

All Science Journal Classification (ASJC) codes

  • Industrial relations
  • Sociology and Political Science
  • Economics, Econometrics and Finance (miscellaneous)
  • Geriatrics and Gerontology
  • Organizational Behavior and Human Resource Management
  • Life-span and Life-course Studies

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