Can Cronbach's alpha be used for binary data?

Apr 19, 2018 ... A trusted reference in the field of psychology, offering more than 25000 clear and authoritative entries. 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 5, 2024 ... I have 6 variables that I want to aggregate, so I conducted PCA to identify different dimensions before combining them into a single general variable. a reliability coefficient and a measure of the internal consistency of tests and measures. [1] [2] [3] It was named after the American psychologist Lee ... 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, ... Apr 16, 2023 ... First, it assumes that the items are unidimensional, meaning that they measure only one construct or factor. However, this may not always be the ... Factor, Physician/Extenders, Nursing staff, Admin staff, All respondents. Teamwork climate, 0.76 (63), 0.74 (43), 0.89 (23), 0.77 (142). Dec 4, 2010 ... This application performs a basic Cronbach's alpha analysis on data provided by the user. The data may be supplied as numerical scores or ... Cronbach's Alpha, N of Items .554, 3. Two or more agree. Cronbach's Alpha, N of Items .668, 3. Trait 2 rater agreement. Frequency, Valid Percent, Cumulative ... This commentary provides additional clarity regarding the language used when describing and interpreting alpha and other estimates of reliability.