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| Kortform McDonald's Omega× | Udvikling af korte skalaer× | |
|---|---|---|
| Fagområde | Psykometri | Psykometri |
| Familie | Latent structure | Latent structure |
| Oprindelsesår≠ | 1999 (omega); short-form application 1990s–2000s | 1990s–2000s |
| Ophavsperson≠ | Roderick P. McDonald (omega); short-form application systematised across psychometric literature | Multiple contributors; foundational critique by Smith, McCarthy & Anderson (2000); practical guidance by Stanton et al. (2002) |
| Type≠ | Reliability coefficient for abbreviated scales | Scale development methodology |
| Oprindelig kilde≠ | 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 ↗ |
| Aliasser | omega for abbreviated scales, short-scale omega, omega-total short form, abbreviated scale reliability | scale abbreviation, abbreviated scale development, short-scale construction, item reduction methodology |
| Relaterede≠ | 4 | 5 |
| Resumé≠ | 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 scale development is the systematic process of reducing a full-length psychological scale to a smaller subset of items while preserving the construct validity, reliability, and measurement properties of the original instrument. It is widely used when administration burden must be minimised without sacrificing psychometric quality. |
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