This article discusses the use of propensity scoring in experimental program evaluations to estimate impacts for subgroups defined by program features and participants' program experiences. The authors discuss estimation issues and provide specification tests. They also discuss the use of an overlooked data collection design--obtaining predictions…

An evaluation of the New York State Experimental Prekindergarten Program was begun in 1975 to provide longititudinal data on the effects of prekindergarten on children's development over a period of 5 years. Data were collected on a variety of items, including children's test performance at various times, family background, ratings by teachers,…

The School Board of Virginia Beach has conducted a two-year pilot program focusing on elementary school students who attend school 45 days and break 15 days year round. Four principal questions were proposed and researched by various independent agencies: (1) What effect does the 45-15 cycled-attendance year-round operation have on pupil…

The technical appendix to "The Career Intern Program: Preliminary Results of an Experiment in Career Education," Volume 1, reports on the research designs used for evaluating the Career Intern Program's (CIP) effectiveness in increasing the student's cognitive skills, academic achievement, vocational adjustment, future orientation, and…

To determine the impact of the middle/junior high level Practical Arts Program from the Kentucky State Department of Education, an experimental/control group design was used in testing students at two junior high schools. The Career Maturity Inventory (CMI) and the School Sentiment Index (SSI) were administered, pre- and posttest, to measure…