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Direct linkAdedokun, Omolola A. – Journal of Extension, 2018
This article provides an illustrative description of the pre-post difference index (PPDI), a simple, nontechnical yet robust tool for examining the instructional sensitivity of assessment items. Extension educators often design pretest-posttest instruments to assess the impact of their curricula on participants' knowledge and understanding of the…
Descriptors: Extension Education, Extension Agents, Pretests Posttests, Curriculum Evaluation
