Introduction: Premature withdrawal from university due to academic failure can present problems for students, families and educators. In an effort to widen the understanding regarding factors predicting academic success in higher institutions, prior academic achievement measures (preparatory school grade average point (GPA), aptitude test scores,…

In "IQ and the Wealth of Nations" (2002), Lynn and Vanhanen estimate the mean IQs of 185 nations and demonstrate that national IQs strongly correlate with the macroeconomic performance of the nations, explaining about half of the variance in GDP per capita. I seek to replicate Lynn and Vanhanen's results across states within the United…

To evaluate the role of temperamental task orientation in adolescents' academic success, we examined its relation to educational accomplishments in high school and college using longitudinal data. Participants (N = 110) were assessed at 15, 16, and 17 years of age with a follow-up at 24 years. Adolescent self-report and parent reports of task…

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…

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…

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…

A novel use of periodic functions, called the periodic procedure, was recently introduced to make practical the use of certain physical measurement ideas in psychology. This paper reports a successful attempt to apply the periodic procedure to an important psychological measurement problem, the measurement of aptitude test item difficulties. The…

This booklet is a guide to taking an aptitude test. The sections of the booklet briefly discuss the following: Why Take an Aptitude Test? How Should You Study for Aptitude Tests?; Your Physical Condition Is Important; How You Feel about Taking Tests Makes a Difference; The Ones Who Give the Tests Are There to Help You; Here Are Some Rules to…

The use of aptitude testing in industrial training is described, and its utility in adapting training to individual needs is discussed. (MF)