[R] Code for Coefficent (Cronbach's) Alpha

[Jonathan Baron]

There is a simpler way to compute alpha (in fact two other
ways) in http://www.psych.upenn.edu/~baron/rpsych.htm
and also in ..../rpsych.pdf (for those who prefer pdf).

Jonathan Baron, Professor of Psychology, University of Pennsylvania
Home page: http://www.sas.upenn.edu/~jbaron
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