Christmann, Andreas; Aelst, Stefan van - Institut für Wirtschafts- und Sozialstatistik, … - 2002
Cronbach’s alpha is a popular method to measure reliability, e.g. in quantifying the reliability of a score to … summarize the information of several items in questionnaires. The alpha coefficient is known to be non-robust. We study the … the Cronbach’s alpha coefficient is extremely sensitive to violations of the classical model assumptions. Furthermore, we …