What are the best practices for ensuring and reporting the reliability of measurement scales? Should Cronbach's alpha always be reported when using multi-item scales?

In statistics, Cronbach's alpha coefficient is used as an estimate of the reliability of a psychometric test. It might have calculated either for each item in ... 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 this statistics lesson, we will focus on how to calculate Cronbach's Alpha coefficient in SPSS as well as how to interpret the reliability Alpha results. Cronbach's alpha (Cronbach, 1951), also known as coefficient alpha, is a measure of reliability, specifically internal consistency reliability or item ... Cronbach's alpha determines the internal consistency or average correlation of items in a survey instrument to gauge its reliability. This paper will illustrate ... Feb 12, 2014 ... This tool computes Cronbach Alpha for a Datashop dataset. Based on item-elimination Cronbach Alpha values, it ranks item reliability with in ... May 25, 2016 ... The results show that omega coefficient is always better choice than alpha and in the presence of skew items is preferable to use omega and glb ... Feb 20, 2025 ... In this article, we're going to walk through the steps of calculating Cronbach's Alpha in Google Sheets using ChatGPT. Cronbach's alpha (Cronbach 1951) assesses the reliability of a summative rating (Likert 1932) scale composed of the variables (called items) specified. The set ... a: Cronbach's alpha reliabilityscores reported in the literature; b. : Cronbach's alpha reliability scores found in our study. Supplemental Table 1 ...