What factors should be considered when comparing the reliability of different scales? Is a higher Cronbach's alpha always better?

Jul 13, 2016 ... In IRT-based scores, reliability is conditional on the score estimate, so it will be different for every response pattern. Aug 31, 2022 ... Cronbach's alpha is a very commonly used method in biomedical research. Cronbach's alpha Indicates the extent to which the items in your ... Apr 16, 2020 ... The first Cronbach's alpha employs the covariances among the items, whereas the alpha based on standardized items employs the correlations among items. Cronbach's alpha coefficient measures the internal consistency, or reliability, of a set of survey items. Use this statistic to help determine whether a ... This commentary provides additional clarity regarding the language used when describing and interpreting alpha and other estimates of reliability. An estimate of the 1–α confidence interval for Cronbach's alpha based on a sample of size n with k items where Cronbach's alpha of the sample is γ is given by Jun 27, 2011 ... In this paper we explain the meaning of Cronbach's alpha, the most widely used objective measure of reliability. Apr 18, 2020 ... In a Cronbach's alpha analysis, a score of 0.7 or above is considered good, that is, the scale is internally consistent. A score of 0.5 or below ... Cronbach's alpha is a statistical measure used to assess the reliability or internal consistency of a scale or survey questions. International Journal of Medical Education. PMID: 28029643; PMCID: PMC4205511; DOI: 10.5116/ijme.4dfb.8dfd. No abstract available. Publication types. Editorial ...