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What Is The Difference Between Formative and Summative Evaluation?

Formative evaluation is a type of evaluation intended to improve the performance of a program or intervention. A formative evaluation is usually undertaken during the design and pre-testing of the intervention or program, but it can also be conducted early in the implementation phase, particularly if implementation activities are not going as expected.

Summative evaluation is a type of evaluation conducted at the end of an intervention (or a phase of that intervention) to determine the extent to which anticipated outcomes were produced. It is designed to provide information about the merit or worth of the intervention.

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