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| Rövidített Item Response Theory (SF-IRT)× | Rövidített konfirmatív faktoranalízis (SF-CFA)× | |
|---|---|---|
| Tudományterület | Pszichometria | Pszichometria |
| Módszercsalád | Latent structure | Latent structure |
| Keletkezés éve≠ | 1980s–2000s | 1990s–2000s |
| Megalkotó≠ | Multiple contributors; IRT adapted to short-form contexts from Lord & Novick (1968) and subsequent applied psychometricians | Building on CFA methodology (Jöreskog, 1969) applied to abbreviated scale contexts |
| Típus≠ | Latent trait / item calibration model | Confirmatory latent-variable model |
| Alapmű≠ | Embretson, S. E. & Reise, S. P. (2000). Item Response Theory for Psychologists. Lawrence Erlbaum Associates. ISBN: 978-0805828191 | Byrne, B. M. (2008). Structural Equation Modeling with EQS: Basic Concepts, Applications, and Programming (2nd ed.). Lawrence Erlbaum Associates. ISBN: 978-0805841268 |
| Alternatív nevek | SF-IRT, abbreviated scale IRT, short-form calibration, shortened instrument IRT | SF-CFA, abbreviated scale CFA, short-form validation, brief scale factor analysis |
| Kapcsolódó≠ | 6 | 4 |
| Összefoglaló≠ | Short-form item response theory applies IRT calibration and scoring to abbreviated or shortened psychological scales. It uses item information functions to guide which items to retain from a full-length instrument, then estimates latent trait scores from the reduced item set while preserving psychometric rigor and linkage to the full-scale metric. | Short-form confirmatory factor analysis applies CFA to a reduced subset of items drawn from a longer validated scale, testing whether the abbreviated version preserves the original factor structure with acceptable model fit and reliability. It is a standard step in short-form scale development and validation. |
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