This article examines the effectiveness of quarterly Recovery Management Checkups (RMCs) for people with substance disorders by level of co-occurring mental disorders (34% none, 27% internalizing disorders, and 39% internalizing and externalizing) across two randomized experiments with 92% to...

In assessing criminality, researchers have used counts of crimes, arrests, and so on, because interval measures were not available. Additionally, crime seriousness varies depending on demographic factors. This study examined the Crime and Violence Scale (CVS) regarding psychometric quality using...

Using data from 1,162 people entering treatment and followed up ( 94%) for 8 years, this article examines the relationship between the duration of abstinence (1 month to 5 or more years) and other aspects of recovery (e.g., health, mental health, coping responses, legal involvement, vocational...

Randomized field experiments are often logistical failures. They are particularly difficult to implement when the intervention involves a large number of components or service providers. Although surmountable, potential methodological problems with using randomized experiments to evaluate...

Increased use of randomized experiments to evaluate social programs throughout the world has been a major advance in evaluation research. This article focuses on determining which program evaluations are appropriate or feasible for randomized experiments. These threshold conditions include: (1)...

This study explores the influence of gender on changes in recovery status among participants in a longitudinal study. The study sample (N = 1,202; 60% female) is recruited on referral to treatment, and annual interviews are conducted from Years 2 to 6 following intake. At each annual observation,...