Supplementary materials for the article: Five-Point Likert Items: t test versus Mann-Whitney-Wilcoxon

Supplementary materials for the article: De Winter, J. C.F., & Dodou, D. (2010). Five-point Likert items: t test versus Mann-Whitney-Wilcoxon. Practical Assessment, Research & Evaluation, 15, 1-12.本对应学术论文的补充材料：De Winter, J. C.F. 与 Dodou, D.（2010年）发表的论文《五点李克特量表条目（Five-point Likert items）：t检验（t test）与曼-惠特尼-Wilcoxon检验（Mann-Whitney-Wilcoxon）的对比》，刊载于《实用评估、研究与评价（Practical Assessment, Research & Evaluation）》第15卷，第1-12页。