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The MPG evidence ratings are based on the evaluation literature of specific prevention and intervention programs. The overall rating is derived from four summary dimensions of program effectiveness:
- the conceptual framework of the program
- the program fidelity
- the evaluation design
- the empirical evidence demonstrating the prevention or reduction of problem behavior; the reduction of risk factors related to problem behavior; or the enhancement of protective factors related to problem behavior
The effectiveness dimensions as well as the overall scores are used to classify programs into three categories that are designed to provide the user with a summary knowledge base of the research supporting a particular program. A brief description of the rating criteria is provided below.
Exemplary
In general, when implemented with a high degree of fidelity these programs demonstrate robust empirical findings using a reputable conceptual framework and an evaluation design of the highest quality (experimental).
Effective
In general, when implemented with sufficient fidelity these programs demonstrate adequate empirical findings using a sound conceptual framework and an evaluation design of the high quality (quasi-experimental).
Promising
In general, when implemented with minimal fidelity these programs demonstrate promising (perhaps inconsistent) empirical findings using a reasonable conceptual framework and a limited evaluation design (single group pre- post-test) that requires causal confirmation using more appropriate experimental techniques.
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