Methoden vergleichen

	Kurzform von McDonald's Omega	Entwicklung von Kurzskalen
Fachgebiet	Psychometrie	Psychometrie
Familie	Latent structure	Latent structure
Entstehungsjahr	1999 (omega); short-form application 1990s–2000s	1990s–2000s
Urheber	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)
Typ	Reliability coefficient for abbreviated scales	Scale development methodology
Wegweisende Quelle	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.
Aliasnamen	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
Verwandt	4	5
Zusammenfassung	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.