Background:Impact evaluations draw their data from two sources, namely, surveys conducted for the evaluation or administrative data collected for other purposes. Both types of data have been used in impact evaluations of social programs.Objective:This study analyzes the causes of differences in...

"When evaluating a pilot or demonstration program, there are risks from drawing inferences from a single test. This paper reviews the experiences of replication efforts from demonstrations using randomized controlled trials in the initial evaluation and the replications. Although replications of...

Background:This article describes eight flaws that occur in impact evaluations.Method:The eight flaws are grouped into four categories on how they affect impact estimates: statistical imprecision; biases; failure of impact estimates to measure effects of the planned treatment; and flaws that...

This paper reviews and assesses evaluations of the Comprehensive Employment and Training Act (CETA) programs. Most of the studies found that the programs raised earnings by $200 to $600 annually in current dollars. The programs were found to be more effective for women than men, and public...

This article examines the literature that estimates parental expenditures on children; describes the types of child support guidelines that are being used by the states; and compares how the child support awards that emerge from each state's guidelines compare to the empirical estimates of...

The Reagan Administration's Interagency Low Income Opportunity Advisory Board (ILIOAB) requirement that states conduct impact evaluations of their welfare reform demonstrations no doubt led some states to conduct evaluations when they otherwise might not have. The ILIOAB requirement that...