Kenneth N. Fortson

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Randomized controlled trials (RCTs) are widely considered to be the gold standard in evaluating the impacts of a social program. When an RCT is infeasible, researchers often estimate program impacts by comparing outcomes of program participants with those of a nonexperimental comparison group, adjusting for observable differences between the two groups.(More)
This paper examines the impacts of four abstinence-only education programs on adolescent sexual activity and risks of pregnancy and sexually transmitted diseases (STDs). Based on an experimental design, the impact analysis uses survey data collected in 2005 and early 2006 from more than 2,000 teens who had been randomly assigned to either a program group(More)
Kenneth N. Fortson is a Ph.D. candidate, Department of Economics, Princeton University, Princeton, NJ. Shortly after 4:00 A.M. on March 28, 1979, mechanical equipment at the nuclear power plant at Three Mile Island, near Harrisburg, Pennsylvania, malfunctioned. In the course of responding to the emergency, operators working the late-night shift made errors(More)
Randomized controlled trials (RCTs) are considered the gold standard in estimating treatment effects. When an RCT is infeasible, regression modeling or statistical matching are often used instead. Nonexperimental methods such as these could produce unbiased estimates if the underlying assumptions hold, but those assumptions are usually not testable. Most(More)
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