While there has been some increasing interest in external validity, most work to this point has been in assessing the similarity of a randomized trial sample and a population of interest (e.g., Stuart et al., 2010; Tipton, 2011). The goal of this research is to calculate empirical estimates of the external validity bias in educational intervention…

This report cumulates the results of 515 validation studies carried out over a 45-year period by the United States Employment Service, and relates these findings to five systems of job classification and job analysis. Correction for sampling error shows that general cognitive, perceptual, and psychomotor ability are valid predictors of job…

This is the sixth and final report of the National Research Council's Committee on the Performance of Military Personnel on the Joint-Service Job Performance Measurement/Enlistment Standards (JPM) Project, a project designed to develop measures of performance for entry-level military jobs so that enlistment standards could be linked to performance…

Argues that Charles Murray's thesis of African American intellectual inferiority exists for a specific political purpose. That purpose is the implicit devaluation of government social programs, especially affirmative action. Discusses the socioeconomic and political factors that resulted in a conservative political climate. (MJP)