What are alternative approaches to analyzing ipsative data? How does Cronbach's alpha relate to the reliability of difference scores?

Cronbach's alpha is a way of assessing reliability by comparing the amount of shared variance, or covariance, among the items making up an instrument to the ... Calculating, interpreting, and reporting Cronbach's Alpha Reliability Coefficient for Likert-Type Scales. This commentary provides additional clarity regarding the language used when describing and interpreting alpha and other estimates of reliability. Cronbach's alpha (Cronbach 1951) assesses the reliability of a summative rating (Likert 1932) scale composed of the variables (called items) specified. The set ... Aug 17, 2011 ... through 4, Cronbach's Alpha was calculated for the entire set of 10 common survey questions used to gauge student course satisfaction ... M. Tavakol and R. Dennick, “Making Sense of Cronbach's Alpha,” International Journal of Medical Education, Vol. 2, 2003, pp. A website allowing to conduct statistical comparisons between Cronbach alpha coefficients. Click "Start analysis" to begin! Apr 19, 2018 ... A trusted reference in the field of psychology, offering more than 25000 clear and authoritative entries. 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 ... Cronbach's alpha is perhaps the most common estimate of internal consistency of items in a scale (Cronbach, · The statistic “typically” ranges from 0.00 to 1.00, ...