The concept of "preevaluative research" is examined in the context of a museum exhibition evaluation. It is viewed as distinct from an evaluability assessment. The exhibit preevaluative study indicates that instrumentation and implementation issues are likely to benefit from such activities, but that design and analysis may suffer.…

Differences between students with and without written parental consent to take part in a sensitive health survey were studied for 2,705 9th and 12th graders with active consent and 3,533 with only passive consent who took a less sensitive survey. Implications of differences are discussed. (SLD)

The outcome evaluation of a Drug-Free Schools and Community Program using a case-study design and pattern-matching logic in elementary schools and high schools is described, including the use of a panel survey and qualitative interviews. The elementary school case matched predicted outcome, but the high school case did not. (SLD)

The following methods of estimating school-level experimentation with drugs by adolescents at 20 California continuation high schools are compared: (1) self-reports; (2) prevalence estimates from students; (3) prevalence estimates from school staff; (4) naturalistic observation; and (5) refuse (garbage) analysis. Advantages of refuse analysis are…