What are other ways to assess the homogeneity of a scale?

Nov 30, 2022 ... In the analysis output window, click on the red triangle menu under the Multivariate header, and then select Item Reliability ▻ Cronbach's α, or ... Cronbach's alpha is a useful statistic for investigating the internal consistency of a questionnaire. If each variable selected for PCA represents test scores ... Aug 29, 2022 ... Cronbach's alpha. Cronbach's alpha was first described in an article in 1951 (1) and has since been by far the most frequently used measure of ... May 14, 2020 ... Cronbach's Alpha ranges between 0 and 1. A higher value indicates a higher internal consistency. In general, a Cronbach's Alpha of 0.7 or more ... Apr 21, 2015 ... Item Analysis tells you how well a set of questions (or items) measures one characteristic (or construct) and helps to identify questions that are problematic. Aug 23, 2018 ... 1 Answer 1 ... Regular alpha is based on covariances. Standardized alpha is based on correlations (which can be thought of as based on ... That means that the Cronbach's alpha of this scale would drop from .741 to .690 if you got rid of that item. Because a higher alpha indicates more reliability, ... Jun 18, 2020 ... Researchers typically use Cronbach's Alpha when they want to know how much variance is item-specific and not shared by other items in the set. Aug 1, 1991 ... Recommended Citation. Sneed, J. (1991). Are Low Cronbach-Alpha Values Reliable?–Reply. Journal of the American Dietetic Association, 91(8), ... International Journal of Medical Education. PMID: 28029643; PMCID: PMC4205511; DOI: 10.5116/ijme.4dfb.8dfd. No abstract available. Publication types. Editorial ...