What are the reliability considerations when using surveys in program evaluation?

Feb 22, 1997 ... A useful coefficient for assessing internal consistency is Cronbach's alpha.2 The formula is: [This figure is not available.] where k is the number of items. Cronbach's alpha (Cronbach 1951) assesses the reliability of a summative rating (Likert 1932) scale composed of the variables (called items) specified. The set ... 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 ... Sep 11, 2010 ... Cronbachs Alpha (CA) tends to be underestimated in a PLS model. Therefore you should rely more on the AVE and composite reliability values. 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 ... 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, ... Oct 26, 2021 ... Comments131 · Standard deviation (simply explained) · Cronbach's Alpha - Excel · Exploratory Factor Analysis · Reliability Analysis, Cronbach ... Cronbach Alpha ... Computes the Cronbach Alpha for all numerical columns based on their variance. Cronbach's Alpha compares the variance of the individual columns ... 6 days ago ... Cronbach's Alpha is a measure of internal consistency/reliability. It is commonly used to determine the reliability of a scale comprised of ... Dec 30, 2020 ... This commentary provides additional clarity regarding the language used when describing and interpreting alpha and other estimates of reliability.