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| Short-form Test-Retest Reliability× | Konstruktiv faktoranalyse (CFA)× | |
|---|---|---|
| Fagområde | Psykometri | Psykometri |
| Familie | Latent structure | Latent structure |
| Oprindelsesår≠ | 1990s–2000s | 1969 |
| Ophavsperson≠ | Derived from classical test-retest reliability; short-form methodology formalised by Smith, McCarthy & Anderson (2000) among others | Karl Gustav Jöreskog |
| Type≠ | Reliability estimation | Hypothesis-testing latent variable model |
| Oprindelig kilde≠ | Smith, G. T., McCarthy, D. M., & Anderson, K. G. (2000). On the sins of short-form development. Psychological Assessment, 12(1), 102–111. DOI ↗ | Jöreskog, K. G. (1969). A general approach to confirmatory maximum likelihood factor analysis. Psychometrika, 34(2), 183–202. DOI ↗ |
| Aliasser | abbreviated scale temporal stability, short-form temporal consistency, retest reliability of short forms, SF test-retest | CFA, confirmatory FA, measurement model, restricted factor analysis |
| Relaterede | 4 | 4 |
| Resumé≠ | Short-form test-retest reliability quantifies how consistently an abbreviated version of a measurement instrument produces the same scores across two administrations separated by a defined time interval. It is a critical validation step whenever a full-length scale is shortened for practical use, confirming that item reduction has not degraded temporal stability. | 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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