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Peer reviewedHumphreys, Keith; And Others – Evaluation and Program Planning, 1996
The self-selection problem in program evaluation is explored, and two ways of addressing it, covariate control approaches and two-stage sample selection models, are described. A longitudinal study of the effects of participation in Alcoholics Anonymous illustrates both approaches and shows the advantages of the two-step procedure. (SLD)
Descriptors: Evaluation Methods, Longitudinal Studies, Mental Health Programs, Program Evaluation
Peer reviewedFeldman, Henry A.; And Others – Evaluation Review, 1996
A method is described for increasing residual degrees of freedom in a community experiment without substantially increasing cost or difficulty by dividing experimental subunits into batches. Theoretical advantages of batch sampling are described and illustrated with data from the Pawtucket Heart Health Program. (SLD)
Descriptors: Community Health Services, Costs, Difficulty Level, Evaluation Methods
Direct linkBrener, Nancy D.; Kann, Laura; McManus, Tim; Stevenson, Beth; Wooley, Susan F. – Journal of School Health, 2004
This study analyzed data from the School Health Policies and Programs Study (SHPPS) 2000 to examine the relationship between school health councils and selected school health policies and programs. SHPPS 2000 collected data from faculty and staff in a nationally representative sample of schools. About two-thirds (65.7%) of US schools have school…
Descriptors: Health Programs, School Policy, School Health Services, Faculty
