Infographic: Alternatives to Random Assignment for Outcome Evaluations

 

Alternatives to Random Assignment for Outcome Evaluations infographicWhen selecting a comparison group for an outcome study, there are a number of methods or “tools” to choose from. This infographic from RTI International describes three such methods: (1) random assignment, (2) nonequivalent comparison group design, and (3) one group pre-test/post-test design.

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