Blending high-quality and rigorous research with pure evaluation practice can often be best accomplished through thoughtful collaboration. The evaluation of a high school drug prevention program (All Stars Senior) is an example of how perceived competing purposes and methodologies can coexist to investigate formative and summative outcome…

Illustrates the use of latent growth modeling (LGM) as an analytical tool in program evaluation using the hypothetical example of a high school drug prevention program. Demonstrates the use of LGM in assessing longitudinal impact and in incorporating predictors of status and growth into a model. Highlights advantages and limitations of LGM. (SLD)

Evaluated a 1-year sex education program for low income male high school students in Chile. Findings for 92 students in the baseline year, 1993, and 196 students in the 1998 cohort show a reduction in the percentage of students reporting having had sexual intercourse, changes attitudes toward abstinence, and differences in communication about…

The status of formal recommendations is different in the naturalistic evaluation model than in the traditional empirical model. The evaluation of a high school peer support program for alcohol abuse prevention illustrates that reader-generated recommendations may have more usefulness and impact than do evaluator-generated ideas. (SLD)