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Direct linkJoost C. F. de Winter; Dimitra Dodou – Practical Assessment, Research & Evaluation, 2010
Likert questionnaires are widely used in survey research, but it is unclear whether the item data should be investigated by means of parametric or nonparametric procedures. This study compared the Type I and II error rates of the "t" test versus the Mann-Whitney-Wilcoxon (MWW) for five-point Likert items. Fourteen population…
Descriptors: Evaluation Methods, Questionnaires, Likert Scales, Statistical Analysis
