A Monte Carlo simulation was used to ascertain the degree of inflation that can occur in regression estimates when samples contain randomly occurring instances of a pattern among correlations called cooperative suppression. Ten thousand samples of scores on three variables were randomly drawn from a population in which the correlations among the…

This study attempted to discover the relative contribution to spelling achievement (the dependent variable) of each of the following independent variables: intelligence, visual memory, auditory memory, structural analysis, phonetic analysis, reading comprehension, and vocabulary. Participating in the study were 190 students from six seventh-grade…

Results are reported from an investigation of the predictive power of three interviewer social status and five personality factors in a multiple regression analysis with four interviewer performance criteria. Personality factors are found to be more predictive of performance than social status. Clearly, one can improve the probability of hiring…

As the first step in a program to develop quantitative techniques for prescribing the design and use of training systems, the present study attempted: to compile an initial set of quantitative indices, to determine whether these indices could be used to describe a sample of trainee tasks and differentiate among them, to develop a predictive…

This study was concerned with various schemes for reducing the number of variables in a multivariate analysis. Two sets of illustrative data were used; the numbers of criterion groups were 3 and 5. The proportion of correct classifications was employed as an index of discriminatory power of each subset of variables selected. Of the four procedures…

To predict the educational quality of programs in 150 school districts, this study used 34 predictor variables in a multiple regression analysis. Dependent variables used to represent educational quality in a district were (1) the percent of rejections by the local Selective Service Boards for mental reasons, (2) the percent of elementary and…

This study used 1994 data from the California Community College System cohort of first-time freshmen to identify that part of University of California (UC) or California State University (CSU) transfer performance that is determined by factors outside the control of college administrators. The idea was to "level the playing field" when…

Discusses multiple regression, a very popular statistical technique in the field of education. One of the basic assumptions in regression analysis requires that independent variables in the equation should not be highly correlated. The problem of multicollinearity and some of the solutions to it are discussed. (Author)

Using data on 1,438 Reykjavik children, this paper analyzes the influence of social origins, family characteristics, and IQ on scholastic performance in sixth, eighth, and ninth grades. Although IQ is the best single predictor of scholastic performance, both social structural and social psychological antecedents proved important. (Author/SJL)

The ability of the new Medical College Admission Test (MCAT) to predict performance of first-year medical students at the University of North Carolina was studied. Its incremental validity, determined by computing the additional variance in performance explainable by the MCAT after the effects of other admissions variables were taken into account,…

Winne and Walsh's Reanalysis (EJ 229 157) of Gauthier and Yarworth's study of self-concept and participation in high school activities (EJ 189 606) is addressed, particularly with respect to the statistical techniques used. The intentions of the original article are also clarified. (GDC)

Examines the effects of years of school completed on eight dimensions of psychological well-being. Notes a statistically significant negative effect for White males' community satisfaction, and some evidence that education has positive effects on psychological well-being in all subpopulations except Black men. (Author/RL)

The inclusion of unmeasured variables in path analyses in educational research is discussed. The statistical basis for inclusion is presented, along with several examples. (JKS)

The extent to which the Pharmacy College Admissions Test and other admissions criteria predict (1) academic performance during later years at Virginia Commonwealth University School of Pharmacy, and (2) scores on the National Association of Boards of Pharmacy Licensing Examination (NABPLEX), and a board of pharmacy law examination are assessed.…

Earlier studies [Mallow, J. V. (1994). Gender-related science anxiety: A first binational study. "Journal of Science Education and Technology" 3: 227-238; Udo, M. K., Ramsey, G. P., Reynolds-Alpert, S., and Mallow, J. V. (2001). Does physics teaching affect gender-based science anxiety? "Journal of Science Education and Technology" 10: 237-247] of…