When applicants take the ACT® more than once, how do colleges and universities reconcile and make sense of the multiple scores? In terms of validity, fairness, and impact on subgroup differences, are certain score-use polices better than others? The focus of this issue brief is to summarize evidence on the validity and fairness of various…

Social and emotional (SE) skills are known to be linked with many important life outcomes, including academic performance, performance on standardized college entrance exams, and college enrollment, although research on enrollment is limited. In this report, the authors present data points from a study that evaluated test-criterion validity…

Different uses of the ACT Assessment emphasize different intervals on its 1-36 score scale. Its use by colleges for applicant selection and course placement emphasize the middle and upper intervals of its score scale, and these uses have been extensively validated (ACT, 2019a). Its uses by school districts and state departments of education to…

The Every Student Succeeds Act requires that English Learners (ELs) are included in annual state testing (grades 3-8 and once in high school) and included in each state's accountability system disaggregated by subgroup to ensure that they receive the support they need to learn English, participate fully in their education experience, and graduate…

In 2014, ACT developed a method to identify high school students who had an interest in Science, Technology, Engineering, and Mathematics (STEM)-related fields. By using ACT data elements, this method provided two different types of STEM interest: Expressed and measured. Based on these STEM interest types, students can be assigned to one of four…

States and districts have expressed interest in administering the ACT® to 10th-grade students. Given that the ACT was designed to be administered in the spring of 11th grade or fall of 12th grade, the appropriateness of this use should be evaluated. As such, the focus of this paper is to summarize empirical evidence evaluating the use of the ACT…

This manual contains technical information about the ACT® college readiness assessment. The principal purpose of this manual is to document the technical characteristics of the ACT in light of its intended purposes. ACT regularly conducts research as part of the ongoing formative evaluation of its programs. The research is intended to ensure that…

One outcome of the implementation of No Child Left Behind Act of 2001 and its call for better accountability in public schools across the nation has been the use of student assessment data in measuring schools' effectiveness. In general, inferences about schools' effectiveness depend on the type of statistical model used to link student assessment…

The purpose of this study was to determine if validity coefficients for ACT scores and high school grade point average (HSGPA) decayed or held stable over eight semesters of undergraduate study in science, technology, engineering, and mathematics (STEM) fields at civilian four-year institutions, and whether the decay patterns differed from those…

This study examined the effects of differential grading in science, technology, engineering, and mathematics (STEM) and non-STEM fields over eight consecutive semesters. Using data from 62,122 students at 26 four-year postsecondary institutions, students were subdivided by institutional admission selectivity levels, gender, and student major…

Ample correlational evidence indicates that high school GPA is usually better than admission test scores in predicting first-year college GPA, although test scores have incremental predictive validity. Many people conclude that this correlational evidence translates directly to usefulness in making admission decisions. The issue of usefulness is…

This manual contains information about the American College Test (ACT) Plan® program. The principal focus of this manual is to document the Plan program's technical adequacy in light of its intended purposes. This manual supersedes the 2011 edition. The content of this manual responds to requirements of the testing industry as established in the…