Estimating the reliability of continuous measures with cronbach's alpha or the intraclass correlation coefficient : toward the integration of two traditions.
The epidemiological literature has been ambiguous concerning reliability estimates for continuous variables.
Reproducibility and internal consistency have been presented as different aspects of reliability, the former being estimated with some form of intraclass correlation coefficient, the latter with Cronbach's alpha.
Based on demonstrations available in the literature this paper recalls that both estimates are based on the same measurement model and on the same definition of reliability.
Mots-clés Pascal : Epidémiologie, Méthodologie, Fiabilité, Etude théorique, Erreur estimation, Coefficient corrélation, Analyse statistique, Psychométrie, Santé, Coefficient alpha Cronbach
Mots-clés Pascal anglais : Epidemiology, Methodology, Reliability, Theoretical study, Estimation error, Correlation coefficient, Statistical analysis, Psychometrics, Health
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 91-0472044
Code Inist : 002B30A. Création : 199406.