Evidence Ratings

Welcome to the Evidence Ratings overview page! Here, you'll find insights into how each strategy's effectiveness is assessed in our validated program library. Evidence Ratings help you understand how likely a program is to achieve meaningful results based on available research. From "Scientifically Supported" strategies, which are backed by robust studies with consistent positive outcomes, to "Evidence of Ineffectiveness," which indicates strategies unlikely to succeed, each rating is designed to guide your choices. Explore the different ratings below to discover what each one means and see which strategies may be the best fit for your goals.

Scientifically Supported: Strategies with this rating are most likely to make a difference. These strategies have been tested in many robust studies with consistently positive results.

Some Evidence: Strategies with this rating are likely to work, but further research is needed to confirm effects. These strategies have been tested more than once and results trend positive overall.

Expert Opinion: Strategies with this rating are recommended by credible, impartial experts but have limited research documenting effects; further research, often with stronger designs, is needed to confirm effects.

Insufficient Evidence: Strategies with this rating have limited research documenting effects. These strategies need further research, often with stronger designs, to confirm effects.

Mixed Evidence: Strategies with this rating have been tested more than once and results are inconsistent or trend negative; further research is needed to confirm effects.

Evidence of Ineffectiveness: Strategies with this rating are not good investments. These strategies have been tested in many robust studies with consistently negative and sometimes harmful results.