The discussion here covers five articles that are linked in the sense that they all treat population invariance. This discussion of population invariance is a somewhat broader treatment of the subject than simply a discussion of these five articles. In particular, occasional reference is made to publications other than those in this issue. The…

This article discusses the five studies included in this issue. Each article addressed the same topic, population invariance of equating. They all used data from major standardized testing programs, and they all used essentially the same statistics to evaluate their results, namely, the root mean square difference and root expected mean square…

The purpose of the present study was to reexamine the screening process being used to select students for gifted and talented programs in the Montgomery County Public Schools, Maryland, and to determine whether problems in screening have been overcome. Specifically, the study was designed to: (1) determine whether the revised screening procedures…

When a state test and National Assessment of Educational Progress (NAEP) are both measuring the same construct, the achievement gaps between subgroups on both tests should be the same. However, if a teacher or school engages in "teaching to the test" then student performance may improve on one test but not on another. We hypothesized that…

The Center on Education Policy (CEP) has been studying state high school exit examinations since 2002. This is the sixth annual report on our comprehensive study of exit exams. The information comes from several sources: our survey of states that have mandatory exit exams, interviews with state officials, media reports, state Web sites, and case…

Robert L. Thorndike was awarded the Educational Testing Service (ETS) Measurement Award at the 1972 ETS Invitational Conference. In "Heredity, Environment, and Class or Ethnic Differences," J. McV. Hunt addressed several fundamental questions pertaining to the hereditary and environmental influences of the observed social class and ethnic…