ifferent evaluation models were applied to data from a high school career education program to investigate problems in statistical conclusion validity and program effectiveness judgments. If potential threats to internal validity are analyzed and protection strategies are developed, more confidence in unplanned ex post facto design using a…

Utilizing the regression-discontinuity research design, this article explores the effectiveness of a developmental English program in a large, multicampus community college. Routinely collected data were extracted from existing records of a cohort of first-time college students followed for approximately 6 years (N = 1,473). Results are consistent…

Citing the signaling and charged use distinction, examines federal expectations and need for evaluation data and extent of local capabilities to meet those expectations when secondary/transition model demonstration projects, funded by the Office of Special Education and Rehabilitation Services, were obligated to improve amount, quality, and use of…