Documents/TM4RG/2: METRICS & METHODS/II.C.ii: Quasi-Experimental Design

II.C.ii: Quasi-Experimental Design

Use a program group and comparison group which has not taken part in the program.

Other Information:

Quasi-experimental designs may use a program group and comparison group which has not taken part in the program, or may simply consider one group, measuring the effects before and after that group receives the program. Quasi-experimental designs differ from experimental designs in that participants in the program and comparison group are NOT randomly assigned; rather a comparison group may be selected after a program group has been established. This technique is less rigorous because there is no certainty that the two groups are comparable across all characteristics; for example, those who choose to sign up for a microfinance program may be more motivated to save, and it may be this characteristic which ultimately explains their higher savings rather than the program.

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