In educational testing, subscores may be provided based on a portion of the items from a larger test. One consideration in evaluation of such subscores is their ability to predict a criterion score. Two limitations on prediction exist. The first, which is well known, is that the coefficient of determination for linear prediction of the criterion…

Even after repeated instruction, first year college chemistry students are often unable to apply stoichiometry knowledge to equilibrium and acid-base chemistry problems. The dynamic and interactive capabilities of online technology may facilitate stoichiometry instruction that promotes more meaningful learning. This study compares a…

This article attempts to present a novel application of a method of measuring accuracy for academic success predictors that could be used as a standard. This procedure is known as the receiver operating characteristic (ROC) curve, which comes from statistical decision techniques. The statistical prediction techniques provide predictor models and…

The topic of distance from home is often discussed when students begin narrowing down colleges they want to apply to; however, there is a scarcity of research actually examining student behavior. The purpose of this study is to address this research gap using data based on a national sample of nearly one million students. Distance was computed in…

"Differential Ability Scales," Second Edition (DAS-II; Elliott, 2007), was developed to measure the cognitive abilities of children and adolescents from age 2 years, 6 months to 17 years, 11 months. The test is designed to be individually administered, measuring general conceptual and reasoning ability ("g") as well as specific…

Kanazawa [Kanazawa, S. (2006). IQ and the wealth of states. "Intelligence," 34, 593-600.] offered estimates of state IQ derived from SAT data. The purpose of this commentary is to argue that state preferences for the use of the ACT versus the SAT create biased estimates of SAT-derived state IQ for states where the ACT is more frequently…

Educational research has shown that individual-level background characteristics, such as parental socio-economic status and academic ability, influence college going behavior. This study tests for the existence of aggregate-level high school effects on college enrollment, persistence and degree attainment. It links institutional data on students…

This article presents questions and answers about ACT's College Readiness Benchmarks. ACT's College Readiness Benchmarks are the minimum ACT test scores required for students to have a high probability of success in credit-bearing college courses--English Composition, social sciences courses, College Algebra, or Biology. Colleges can use the…

Elementary general music teachers typically teach hundreds of students every week. Each child has individual learning needs due to a variety of factors, such as prior experiences with music, music aptitude, learning style, and personality. The purpose of this qualitative study was to explore ways that experienced teachers used assessments to…

This Policy Brief describes the methods a growing number of states are using to place college readiness indicators in high school coursework and assessments. To help ensure that students are prepared for college-level work, a number of states embed college readiness indicators in curriculum and assessments. This policy brief presents how several…

Presented at the national conference for AERA (American Educational Research Association) . This study examined whether there are distinct differences in the demographic characteristics, HSGPA, first-year college performance, and second-year college retention rates among students who have discrepant CR-W performance.

[Slides] presented at the American Educational Research Association (AERA) in 2009. This study investigated the presence of a general rise in high school grades without a corresponding rise in SAT scores, as well as different grading criteria between schools, as shown by differential relationships between AP course grades and exam scores. These…

Item response theory (IRT) methodology is introduced as a tool for improving assessment instruments used with people who have disabilities. Need for this approach in rehabilitation is emphasized; differences between IRT and classical test theory are clarified. Concepts essential to understanding IRT are defined, necessary data assumptions are…

Various reasons may be advanced for conducting proficiency tests in academic literacy at higher education institutions. The Standardised Assessment Test for Access and Placement (SATAP) aims at determining the academic literacy skills that entry-level students should demonstrate as a predictor of their preparedness and success in tertiary…

Although some research has examined the factorial nature of the Multidimensional Aptitude Battery (MAB), none has tested hypotheses relevant to both oblique and orthogonal models via confirmatory factor analysis. Thus, in this investigation, a series of models was tested, which compared the model fit of both oblique/higher order models against a…