Evaluation FAQ: What Sample Size Do I Need for an Impact Evaluation?Download Document: fs-15-157-1.pdf (348 KB)Abstract: An appropriate study sample size and method of selection is critical to the success of any evaluation. In an impact evaluation, with a comparison drawn between a treatment group and a comparison group or showing a change over time, the following factors should be considered during the design phase. This will ensure that an adequate sample is selected to answer your primary evaluation questions.Shortname: fs-15-157Author(s): MEASURE EvaluationYear: 2015Language: EnglishRegion(s): GlobalFiled under: Evaluation
