This paper discusses the principles underlying discriminant analysis and constructs a simulated data set to illustrate its methods. Discriminant analysis is a multivariate technique for identifying the best combination of variables to maximally discriminate between groups. Discriminant functions are established on existing groups and used to…

Based upon PhD thesis, Florida State University, May 1966.

Linear classification functions (LCFs) arise in a predictive discriminant analysis for the purpose of classifying experimental units into criterion groups. The relative contribution of the response variables to classification accuracy may be based on LCF-variable correlations for each group. It is proved that, if the raw response measures are…

Several advantages to the use of factor scores as independent variables in a multiple regression equation were found. To help select the most desirable type of factor score on which to calculate a regression equation, computer-based Monte Carlo methods were used to compare the predictive accuracy upon replication of regression of five…

A 4-year United States Office of Education prekindergarten-kindergarten series of research studies has provided data useful in predicting school success. The present study compares test scores of the Complete Assessment Battery administered before the children entered kindergarten with scores of the same children on the Metropolitan Readiness…

Results showed that significantly more accurate predictions of academic performance were obtained for lower fear of failure students and for students who perceived their present course grades as more important to their career plans than those who did not. (Author/DEP)

The relative predictive validity of girls' and boys' success in algebra is examined. Eighth-grade students completed the Orleans-Hanna Algebra Prognosis Test. These prognosis test scores were correlated with grades that students subsequently earned in first-year algebra. Algebra grades of girls proved to be the more predictable. (Author/DWH)

A procedure is suggested for test development and construct validation based on a theory about the criterion performance. The method is illustrated by describing a study concerned with the selection of medical school students, where the criterion is a measure of clinical problem-solving ability. (Author/LMO)

The purpose of this report is to document the development of an index of behavioral consistency, time to completion, for use as a predictor of trainability. Also, a brief discussion is devoted to the use of the time to completion measure in the management of a training program. (Author/RK)

The implications of Piaget's theory of play were discussed in conjection with Wallach and Kogan's associative theory of creativity. (Editor)

Total motor and cognitive-motor performance at age 4 was related to home environment but not to neonatal reflexes. Large muscle skill was unrelated to environment but did relate to neonatal reflexes among girls. (Author)

Multiple regression analysis is discussed as useful for studying the effect of a variable while controlling for the effects of others and for estimating the total effect of all predictor variables together. It is suggested that in English-as-a-Second-Language proficiency measurement, regression coefficients should not be the basis for judging…

Background: Life events have consistently been found to be associated with behaviour problems and depression among individuals with intellectual disability (ID). However, prior findings have typically been based on correlational or retrospective analyses of case files. The current study attempted to replicate prior findings from life events with…

The accuracy and variability of 4 cross-validation procedures and 18 formulas were compared concerning their ability to estimate the population multiple correlation and the validity of the sample regression equation in the population. The investigation included two types of regression, multiple and stepwise; three sample sizes, N = 30, 60, 120;…

Student perceptions of their classroom environment correlated consistently with end-of-course cognitive, affective, and behavioral learning outcomes, with or without statistical controls for ability, pretests, or both measures. Twelve classroom observation studies, kindergarten to grade 12, that reported simple, partial, and part correlations…