The adequacy of equipercentile, linear, one-parameter (Rasch), and three-parameter logistic item-response theory procedures for equating 12 forms of five tests of general educational development were compared. Results indicated the equating method adequacy depends on a variety of factors such as test characteristics, equating design, and sample…

A study tested a conceptual model of attrition, the Tinto (1975) model, on a group of General Educational Development (GED) examinees and on a comparison group of traditional high school graduates from a single public community college. The sample consisted of 198 GED students and 201 traditional high school graduates who entered Queensborough…