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Longitudinal McDonald's omega

Longitudinal McDonald's omega estimates scale reliability separately at each measurement occasion in a panel or repeated-measures study. By fitting a confirmatory factor model at each wave, it tracks how consistently a set of items measures its target construct over time, detecting erosion or improvement in measurement quality that a single omnibus reliability coefficient would obscure.

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Longitudinal McDonald's Omega Reliability Coefficient

Taksonomisk metoderegister · latent-structure / psychometrics

McDonald, R. P. (1999). Test Theory: A Unified Treatment. Lawrence Erlbaum Associates. · ISBN 978-0805830(textbook)
Geldhof, G. J., Preacher, K. J., & Zyphur, M. J. (2014). Reliability estimation in a multilevel confirmatory factor analysis framework. Psychological Methods, 19(1), 72–91. · DOI 10.1037/a0032138

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