Σύγκριση μεθόδων

	Διαχρονική Εγκυρότητα Κατασκευής	Συγκλίνουσα Εγκυρότητα
Πεδίο	Ψυχομετρία	Ψυχομετρία
Οικογένεια	Latent structure	Latent structure
Έτος προέλευσης	1993–2000	1959
Δημιουργός	Meredith, Vandenberg, and the measurement invariance tradition	Donald T. Campbell & Donald W. Fiske
Τύπος	Validity evaluation framework	Validity evidence / construct validation
Θεμελιώδης πηγή	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.	Campbell, D. T., & Fiske, D. W. (1959). Convergent and discriminant validation by the multitrait-multimethod matrix. Psychological Bulletin, 56(2), 81–105.
Εναλλακτικές ονομασίες	longitudinal measurement validity, construct validity over time, longitudinal measurement invariance, LCV	convergent construct validity, convergence validity, AVE-based convergent validity
Συναφείς	5	4
Σύνοψη	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.	Convergent validity is the degree to which multiple indicators that are theoretically expected to measure the same construct actually correlate with one another. It is one of the two complementary forms of construct validity identified by Campbell and Fiske (1959) and is now routinely assessed via factor loadings and the Average Variance Extracted (AVE) statistic in SEM-based scale validation.