Σύγκριση μεθόδων

	Διαχρονική Συγκλίνουσα Εγκυρότητα	Διαμήκης Διακριτική Εγκυρότητα
Πεδίο	Ψυχομετρία	Ψυχομετρία
Οικογένεια	Latent structure	Latent structure
Έτος προέλευσης	1997–2003	1993–2000
Δημιουργός	Cole & Maxwell; Widaman & Reise	Formalized through SEM-based validity traditions (Campbell & Fiske, 1959; Cole & Maxwell, 1993)
Τύπος	Validity evidence framework	Validity assessment / measurement quality
Θεμελιώδης πηγή	Cole, D. A. & Maxwell, S. E. (2003). Testing mediational models with longitudinal data: Questions and tips in the use of structural equation modeling. Journal of Abnormal Psychology, 112(4), 558–577.	Cole, D. A. & Maxwell, S. E. (1993). Testing mediational models with longitudinal data: Questions and tips in the use of structural equation modeling. Journal of Abnormal Psychology, 112(4), 558–577.
Εναλλακτικές ονομασίες	longitudinal construct validity, repeated-measure convergent validity, cross-time convergent validity, temporal convergent validity	LDV, longitudinal construct distinctiveness, cross-time discriminant validity, temporal discriminant validity
Συναφείς	6	4
Σύνοψη	Longitudinal convergent validity evaluates whether a scale's indicators correlate with theoretically related constructs not just at a single time point but consistently across repeated measurement occasions. It extends standard convergent validity testing into longitudinal designs to ensure that the scale measures the intended construct in the same meaningful way over time.	Longitudinal discriminant validity tests whether a psychological construct measured at two or more time points is empirically distinct across occasions — ensuring that the same construct does not collapse into a single undifferentiated mass over time. It is a prerequisite for meaningful change modeling in panel and longitudinal research.