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| Omega di McDonald per forme brevi× | Analisi di affidabilità della forma breve× | |
|---|---|---|
| Campo | Psicometria | Psicometria |
| Famiglia | Latent structure | Latent structure |
| Anno di origine≠ | 1999 (omega); short-form application 1990s–2000s | 1990s–2000s |
| Ideatore≠ | Roderick P. McDonald (omega); short-form application systematised across psychometric literature | Conventional practice; codified notably by Smith, McCarthy & Anderson (2000) and Stanton et al. (2002) |
| Tipo≠ | Reliability coefficient for abbreviated scales | Scale development / psychometric evaluation |
| Fonte seminale≠ | McDonald, R. P. (1999). Test theory: A unified treatment. Lawrence Erlbaum Associates. ISBN: 978-0805830750 | 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 ↗ |
| Alias | omega for abbreviated scales, short-scale omega, omega-total short form, abbreviated scale reliability | abbreviated scale reliability, short-form validation, scale shortening, item reduction reliability |
| Correlati≠ | 4 | 6 |
| Sintesi≠ | Short-form McDonald's omega applies the omega reliability coefficient to abbreviated or shortened versions of psychological scales. It provides a theoretically sound reliability estimate that accounts for the multidimensional structure of the short instrument, enabling researchers to evaluate whether abbreviation has preserved the reliability of the original full-length scale. | 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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