alpha: Robust Cronbach's alpha with missing and non-normal data

Cronbach's alpha is one of the most widely used reliability or internal consistency measures in social, behavioral and education sciences. Alpha is reported in nearly every study that involves measuring a construct through multiple test items. The package coefficientalpha calculates Cronbach's coefficient alpha with missing data and non-normal data. Robust standard error and confidence interval are also provided.

AuthorZhiyong Zhang and Ke-Hai Yuan
Date of publication2013-03-28 13:51:32
MaintainerZhiyong Zhang <>

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