Question About Tests of Normality and Choice of Statistical Analysis

Posted by bdates on Dec 30, 2014; 6:17pm
URL: http://spssx-discussion.165.s1.nabble.com/Question-About-Tests-of-Normality-and-Choice-of-Statistical-Analysis-tp5728302.html

With regard to tests of normality such as Kolmogorov-Smirnov, Shapiro-Wilk, Anderson-Darling, etc., is anyone out there using the results to determine whether to perform a parametric (e.g., t-test) or non-parametric (e.g., Mann-Whitney U) on a dataset?  If the data are interval, but are found not normal according to one of these tests, is that enough to discard a parametric statistic?  Thanks.

 

Brian

 

Brian Dates, M.A.
Director of Evaluation and Research | Evaluation & Research | Southwest Counseling Solutions
Southwest Solutions
1700 Waterman, Detroit, MI 48209
313-841-8900 (x7442) office | 313-849-2702 fax
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