What alternative approaches are used to estimate the reliability of CAT scores? How does Cronbach's alpha apply to the measurement of change over time in longitudinal studies?

Jan 17, 2025 ... We examine whether α values reported in the psychological literature show signs of inflation, for example, because of publication bias or hacking. Feb 3, 2023 ... We examined whether α values reported in the psychology literature are inflated at the rule-of-thumb thresholds (α = .70, .80, .90) due to, for example, ... In these results, the overall Cronbach's alpha is 0.9550. The value is greater than the common benchmark of 0.7 and suggests that the items are measuring the ... What does Cronbach's alpha mean? | SPSS FAQ. Cronbach's alpha is a measure of internal consistency, that is, how closely related a set of items are as a group. Dec 28, 2017 ... : Ideal Response Time and Delusion of Cronbach's Alpha. Journal of Measurement and Evaluation in Education and Psychology, 8(4), 344-353 ... 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 ... Jun 17, 2016 ... Comments Section ... The Cronbach Alpha is an indicator of "correlation" between your questions/items. To phrase it otherwise : if Question #1 & ... Oct 19, 2015 ... No single reliability index can be considered a perfect assessment tool to solve this issue. Thus, at least two to three indexes should be used to ensure the ... 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 Cronbach's alpha is the most common measure of internal consistency ("reliability"). It is most commonly used when you have multiple Likert questions in a ...