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	Validità Discriminante Ordinale	Validità Discriminante
Campo	Psicometria	Psicometria
Famiglia	Latent structure	Latent structure
Anno di origine	1959 (concept); 2000s–2010s (ordinal adaptations)	1959
Ideatore	Campbell & Fiske (discriminant validity concept); adapted for ordinal data by subsequent psychometricians	Donald T. Campbell and Donald W. Fiske
Tipo	Validity assessment	Validity evidence / psychometric evaluation
Fonte seminale	Campbell, D. T., & Fiske, D. W. (1959). Convergent and discriminant validation by the multitrait-multimethod matrix. Psychological Bulletin, 56(2), 81–105.	Campbell, D. T., & Fiske, D. W. (1959). Convergent and discriminant validation by the multitrait-multimethod matrix. Psychological Bulletin, 56(2), 81–105.
Alias	discriminant validity for ordinal data, polychoric discriminant validity, ordinal HTMT, ordinal AVE-based discriminant validity	discriminant validity evidence, divergent validity, DV, AVE-based discriminant validity
Correlati	6	5
Sintesi	Ordinal discriminant validity assesses whether a latent construct measured by ordinal (Likert-type) items is empirically distinct from other constructs in the same instrument. It applies polychoric correlations and ordinal-appropriate factor loadings to standard discriminant validity criteria such as the Fornell-Larcker rule and the Heterotrait-Monotrait ratio (HTMT), ensuring that validity conclusions are not distorted by the non-continuous nature of ordered-response data.	Discriminant validity is evidence that a latent construct is empirically distinct from other constructs it should differ from. Originating in Campbell and Fiske's multitrait-multimethod framework (1959), it is a core component of construct validity and a mandatory check in scale development and structural equation modeling.