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Rearrest Rates and Effect Sizes for Different Substance Abuse Measures by Randomization
| N | Treatment Group | Control Group | Effect Size | |
|---|---|---|---|---|
| Severity of Drug Use ASI > .04 | ||||
| High-Risk/Severity, % | 49 | 50 | 60 | .20 |
| Moderate-Risk/Severity, % | 48 | 50 | 41 | −.18 |
| Cocaine or Heroin As Primary Drug of Choice | ||||
| High-Risk/Cocaine/Heroin Use, % | 17 | 60 | 71 | .22 |
| Moderate-Risk/Cocaine/Heroin Use% | 25 | 70 | 47 | −.46 |
