Methods exist for testing the homogeneity of group regression for the case in which there is only one predictor. Studies which have investigated aptitude-treatment interactions have adopted the homogeneity of regressions test as standard methodology for assessing the difference in regression slopes across treatments. Additional statistical…

The Torrance Tests of Creative Thinking (TTCT) may represent a breakthrough in the area of creativity research, since they provide a functional instrument for measuring creative potential in children, adolescents, and adults. However, there are certain technical problems with achieving interscorer reliability which may act as a deterrent to the…

The optimum weighting of variables to predict a dependent-criterion variable is an important problem in nearly all of the social and natural sciences. Although the predominant method, multiple regression analysis (MR), yields optimum weights for the sample at hand, these weights are not generally optimum in the population from which the sample was…

By using complex multiple regression models to generate regression surfaces, the relationships between academic achievement, creativity, and intelligence are examined. Findings indicate that for certain academic subjects creativity is related to achievement up to a threshold level of intelligence, but after the threshold has been reached…

Attempts to answer the question of whether it is profitable to operate Catholic schools and whether the failure to build new schools will cause financial and educational disaster for the next generation. (Author/RK)

The study reported here assessed the contribution of short-term memory to differences in standardized listening scores for each of five types of auditory input. Memory for syntactically arranged words proved to be the best predictor of listening skill in this battery of tests. (SED)

(See also TM 501 087, TM 501 089 and TM 501 090.)

The present study is an attempt to explore the usefulness of demographic predictors of writing ability. Specifically, it is concerned with delineating the elements involved in writing and to ascertain the effects of achievement, language background, age, sex, social class, etc., on linguistic ability. (Author/RK)

The Structure-of-Intellect Tests are shown to represent promising alternatives to the traditional commercial standardized tests now widely used in predicting success in modern algebra. (Author/NE)

The purposes of this study were (a) to analyze the significant variables influencing committee decisions to readmit flunked-out students and, (b) to compare these with variables predicting grade point average after readmission. (Author/AG)

Rules are given for estimating accuracy of predictions based on a multiple regression equation. Formulas for moments of distribution and other parameters are noted. The approximate inflation in mean absolute error due to estimating the regression coefficients is a function of the base sample size and number of predictors. (DWH)

Multiple regression is used to discover interconnections between IQ and vocabulary test scores as one variable, and socioeconomic factors as the other. Results show total variance as explained by predictors is never more than eight per cent, indicating differences in IQ scores are not attributable to environmental factors. (RW)

The relationships between speech parameters and speech intelligibility of 40 severely to profoundly hearing-impaired adults were studied. Regression analysis revealed that speech intelligibility was predicted by a cognate-pair voice-onset-time difference measure and a measure of the stability of the volume-velocity rise time. (Author/JDD)

Investigates the effect of sex, age, intelligence, and sex role flexibility on prosocial behavior among preschool children. Finds a significant and positive correlation between sex role flexibility and prosocial behavior among boys but not among girls. (FMW)