Latent structureScale / measurement

Longitudinal Construct Validity

Longitudinal construct validity evaluates whether a psychological scale measures the same latent construct in the same way across multiple time points. It is tested by progressively constraining a confirmatory factor model across waves and comparing model fit, ensuring that observed change scores reflect genuine change in the underlying trait rather than measurement drift.

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Sources

  1. Vandenberg, R. J. & Lance, C. E. (2000). A review and synthesis of the measurement invariance literature: Suggestions, practices, and recommendations for organizational research. Organizational Research Methods, 3(1), 4–70. DOI: 10.1177/109442810031002
  2. Meredith, W. (1993). Measurement invariance, factor analysis and factorial invariance. Psychometrika, 58(4), 525–543. DOI: 10.1007/BF02294825

Related methods

ScholarGateLongitudinal Construct Validity (Longitudinal Construct Validity). Retrieved 2026-06-04 from https://scholargate.app/en/psychometrics/longitudinal-construct-validity