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RE:Comparing before and after scores based on questionairre

  • 1.  RE:Comparing before and after scores based on questionairre

    Posted 06-22-2012 09:44

    Good point, Steven. Thanks for the reminder. Here is another article on this topic:

    Zumbo, B. D. G. A. M. &. Z. C. (2007). Ordinal versions of coefficients alpha and theta for Likert rating scales. Journal of modern applied statistical methods, 6, 21-29

    Sincerely yours,
    Chengwu Yang