Σύγκριση μεθόδων

	Διαχρονική Νομολογική Εγκυρότητα	Συγκλίνουσα Εγκυρότητα
Πεδίο	Ψυχομετρία	Ψυχομετρία
Οικογένεια	Latent structure	Latent structure
Έτος προέλευσης	1955 (concept); longitudinal extension 1990s–2000s	1959
Δημιουργός	Cronbach & Meehl (nomological network concept, 1955); longitudinal extension developed in organizational and personality research from the 1990s onward	Donald T. Campbell & Donald W. Fiske
Τύπος	Validity evaluation	Validity evidence / construct validation
Θεμελιώδης πηγή	Cronbach, L. J., & Meehl, P. E. (1955). Construct validity in psychological tests. Psychological Bulletin, 52(4), 281–302.	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 construct validity, nomological network validation across time, longitudinal criterion-related validity, temporal nomological validity	convergent construct validity, convergence validity, AVE-based convergent validity
Συναφείς	6	4
Σύνοψη	Longitudinal nomological validity evaluates whether a construct's theoretically predicted relationships with other constructs hold consistently across multiple measurement occasions. It extends the nomological network framework of Cronbach and Meehl (1955) to longitudinal designs, testing whether a scale behaves as theory demands not only at a single time point but over time.	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.