CrimeSolutions.gov

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FAQ

What do the evidence ratings used on CrimeSolutions.gov mean?

CrimeSolutions.gov classifies programs  and practices in three levels: “Effective,” “Promising” and “No Effects” based on the strength of the evaluation research that indicates a program or practice achieves its goals (i.e., its intended outcomes).

Evidence Ratings

Evidence Rating

Icon*

Description

One Study

More than One Study or Meta-Analysis

Effective

Effective icon

Effective multi-study icon

Programs or Practices have strong evidence indicating they achieve their intended outcomes.

Promising

Promising icon

Promising multi-study icon

Programs or Practices have some evidence indicating they achieve their intended outcomes.

No Effects

Ineffective icon

Ineffective multi-study icon

Programs or Practices have strong evidence indicating that they did not achieve their intended outcomes.

* A single study icon is used to identify programs or practices that have been evaluated with only one study. A multiple studies icon is used to represent a greater extent of evidence supporting the evidence rating. The icon depicts programs and practices that have more than one study or meta-analysis in the evidence base demonstrating effects in a consistent direction.   

Read more about evidence ratings at About CrimeSolutions.gov.