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| Teoria generalizowalności w formie skróconej× | Analiza rzetelności skróconej wersji skali× | |
|---|---|---|
| Dziedzina | Psychometria | Psychometria |
| Rodzina | Latent structure | Latent structure |
| Rok powstania≠ | 1963–1972 (G-theory); short-form extension ongoing from 1980s | 1990s–2000s |
| Twórca≠ | Lee J. Cronbach, Goldine Gleser, Harinder Nanda, Nageswari Rajaratnam | Conventional practice; codified notably by Smith, McCarthy & Anderson (2000) and Stanton et al. (2002) |
| Typ≠ | Reliability / decision-study framework | Scale development / psychometric evaluation |
| Źródło pierwotne≠ | Brennan, R. L. (2001). Generalizability Theory. Springer. ISBN: 978-0387952826 | Stanton, J. M., Sinar, E. F., Balzer, W. K. & Smith, P. C. (2002). Issues and strategies for reducing the length of self-report scales. Personnel Psychology, 55(1), 167–194. DOI ↗ |
| Inne nazwy | G-theory for abbreviated scales, short-form G-study, abbreviated test generalizability, short-form D-study | abbreviated scale reliability, short-form validation, scale shortening, item reduction reliability |
| Pokrewne≠ | 5 | 6 |
| Podsumowanie≠ | Short form generalizability theory applies the G-theory variance-component framework to abbreviated measurement instruments, using G-studies and D-studies to estimate how many items a short scale must retain to achieve a desired reliability and to evaluate the accuracy of decisions made with a condensed instrument. | Short-form reliability analysis evaluates whether an abbreviated version of a psychological scale maintains acceptable internal consistency, validity, and structural integrity after items are removed. It is used in survey and assessment research to create briefer instruments that reduce respondent burden without sacrificing measurement quality. |
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