Coefficient Omega
John M. Taylor
Abstract
This article raises the concern that nursing education research may be unduly subject to several limitations inherited from an overreliance on Cronbach's α. Consequently, researchers are encouraged to make greater use of coefficient omega since it is expected to perform just as well as or better than Cronbach's α, especially when tau-equivalence goes unmet. Several resources are noted that may help researchers estimate omega for composite measurements. [ J Nurs Educ . 2021;60(8):429–430.]
Topics & Concepts
Cronbach's alphaOmegaEquivalence (formal languages)PsychologyMathematicsClinical psychologyPsychometricsPhilosophyDiscrete mathematicsLinguisticsStatistical Methods in EpidemiologyReliability and Agreement in Measurement