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ERIC Number: EJ596283
Record Type: Journal
Publication Date: 1999
Pages: N/A
Abstractor: N/A
Reference Count: N/A
ISBN: N/A
ISSN: ISSN-0022-0973
Power, Type I, and Type III Error Rates of Parametric and Nonparametric Statistical Tests.
MacDonald, Paul
Journal of Experimental Education, v67 n4 p369-79 Sum 1999
Assessed the relative merits of the Student "t" test and the Wilcoxon rank sum test under four population distributions and six sample-size pairings through Monte Carlo methods. The Wilcoxon rank sum test demonstrated an advantage in statistical power for nonnormal distributions (but not normal distributions), with fewer Type III errors and fewer rejections in the wrong direction. (SLD)
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A