What is coefficient alpha?

Cronbach's alpha (Cronbach 1951) assesses the reliability of a summative rating (Likert 1932) scale composed of the variables (called items) specified. The set ... Oct 13, 2014 ... We propose a confidence interval that does not require equal variances or equal covariances. The results of a simulation study demonstrated that the proposed ... Jan 21, 2025 ... An Aberrant Abundance of Cronbach's Alpha Values at .70 https://t.co/q9JyTPOWbR. Watch videos from a variety of sources bringing classroom topics to life. Explore hundreds of books and reference titles sign up today! 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 ... 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. Oct 17, 2017 ... We propose a confidence interval that does not require equal variances or equal covariances. The results of a simulation study demonstrated that the proposed ... Apr 19, 2018 ... A trusted reference in the field of psychology, offering more than 25000 clear and authoritative entries. Aug 1, 1991 ... Recommended Citation. Sneed, J. (1991). Are Low Cronbach-Alpha Values Reliable?–Reply. Journal of the American Dietetic Association, 91(8), ... 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 ...