摘要：Evaluation is an essential component of any Extension education program. One tool, the pre- and post-test, provides measurable evaluation data. Yet often the answer "I don't know" or all possible answers to a multiple choice question are not included in the repeated measure analysis. Because more than two answers are offered, the test of marginal homogeneity repeated measure analysis should be used, which takes into account all response sets when comparing a participant's pre- and post-test answers. This article provides an example of conducting and interpreting the test of marginal homogeneity.
关键词：statistical analysis ; test of marginal homogeneity ; pre-test ; post-test
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