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| Pitkittäinen erottelupätevyys× | Vahvistava faktorianalyysi (CFA)× | |
|---|---|---|
| Tieteenala | Psykometriikka | Psykometriikka |
| Menetelmäperhe | Latent structure | Latent structure |
| Syntyvuosi≠ | 1993–2000 | 1969 |
| Kehittäjä≠ | Formalized through SEM-based validity traditions (Campbell & Fiske, 1959; Cole & Maxwell, 1993) | Karl Gustav Jöreskog |
| Tyyppi≠ | Validity assessment / measurement quality | Hypothesis-testing latent variable model |
| Alkuperäislähde≠ | 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. DOI ↗ | Jöreskog, K. G. (1969). A general approach to confirmatory maximum likelihood factor analysis. Psychometrika, 34(2), 183–202. DOI ↗ |
| Rinnakkaisnimet | LDV, longitudinal construct distinctiveness, cross-time discriminant validity, temporal discriminant validity | CFA, confirmatory FA, measurement model, restricted factor analysis |
| Liittyvät | 4 | 4 |
| Tiivistelmä≠ | 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. | Confirmatory factor analysis tests a researcher-specified factor structure against observed data. Unlike exploratory approaches, the researcher decides in advance which indicators load on which latent factor, and the model is evaluated by how closely the implied covariance matrix reproduces the sample covariance matrix. CFA is central to scale validation, construct validity assessment, and measurement invariance testing. |
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