Comparar métodos

	Invarianza de Medida de Forma Corta	Teoría de Respuesta al Ítem (TRI)
Campo	Psicometría	Psicometría
Familia	Latent structure	Latent structure
Año de origen	2000s	1952–1968
Autor original	Adapted from Vandenberg & Lance (2000) and Millsap & Kwok (2004) invariance framework applied to short-form scales	Frederic M. Lord (and Allan Birnbaum for the 2PL/3PL models)
Tipo	Measurement equivalence testing	Probabilistic measurement model
Fuente seminal	Millsap, R. E., & Kwok, O. M. (2004). Evaluating the impact of partial factor loading and intercept invariance on selection in two populations. Psychological Methods, 9(1), 93–115.	Lord, F. M. & Novick, M. R. (1968). Statistical Theories of Mental Test Scores. Addison-Wesley.
Alias	SF-MI, abbreviated scale invariance, short-form factorial invariance, brief measure invariance	IRT, latent trait theory, item characteristic curve theory, modern test theory
Relacionados	6	5
Resumen	Short form measurement invariance testing evaluates whether an abbreviated version of a psychological scale measures the same latent construct equivalently across groups or conditions. It applies the hierarchical multigroup confirmatory factor analysis invariance sequence — configural, metric, scalar, and strict — specifically to short-form instruments, ensuring that brevity does not introduce measurement bias when comparing subgroups.	Item response theory models the probability that a respondent answers an item correctly (or endorses it) as a function of the respondent's latent trait level and the item's own statistical properties — difficulty, discrimination, and guessing. Unlike classical test theory, IRT places persons and items on the same scale, yielding measurement that is sample-independent for items and test-independent for persons.