This paper presents the results of three experiments studying routine problem-solving tasks in simple addition and subtraction. Indications are that children tend to solve such problems by internalized counting procedures which may be learned independently as a consequence of practice in problem solving. Brief descriptions of exploratory studies…

The purpose of the present study was to investigate empirically the effects of violations of the assumption of homogeneity of within-group regression slopes on levels of significance in the F test of fixed-effects ANCOVA (analysis of covariance). The study used a Monte Carlo computer simulation procedure to generate data under the following…

The objective was to improve procedures for selecting entrants with better potential for (a) completing the Coast Guard Academy and (b) remaining on active duty after graduation beyond the mandatory five-year period. Stepwise multiple regression was applied to the information on 10 instruments to develop equations for predicting graduation. Five…

Joreskog's general method for analysis of covariance structures was developed for estimating a model involving structures of a very general form on means, variances, and covariances of multivariate observations. This method achieves a great deal of generality and flexibility, in that it is capable of handling most standard statistical models as…

In 1966, the Department of Defense lowered entrance standards for military service. Men who enter the service as a result of this action are called 'New Standards' men. In this research, the relationship between literacy status of a sample of New Standards men after 23 months of Army service and various indices of military performance was…

In this report, the author suggests changes in the treatment of overhead costs by hypothesizing that "the effectiveness of standard costing in planning and controlling overhead costs can be increased through the use of probability theory and associated statistical techniques." To test the hypothesis, the author (1) presents an overview of the…

This report examines existing mathematical methods that have been utilized to develop educational enrollment estimates and analyzes the applicability of these methods in the community college setting. Models surveyed are based on (1) extrapolation--by either survival cohort or cohort-regression, (2) structural flow, and (3) Markov-type procedures.…

This study utilized linear multiple regression analysis with dummy variables to isolate one component of an educational accountability system, the contribution of the individual teacher to student achievement. Independent variables consisted of measures of each student's past academic record, the size of the class and a dummy variable to represent…

This paper discusses the use of contrast coefficients in multiple linear regression models, and shows how they can provide for a logical method of analysis in both the analysis of variance and the analysis of covariance. (CK)

The importance of college image on student enrollment choices is discussed and a model is described which, using various student background variables as independent variables and college choice as the dependent variable, tries to assess the factors which determine college choice. (SE)

Part 1 of a two-part article describing a study that attempts to identify determinants of change in teacher salaries and examines both school district contextual factors and school district negotiations characteristics in terms of final contracts negotiated in New York during the 1971-72 school year. (JG)

This study, based on a survey of rural families in several provinces in Indonesia, is an attempt to search for variables, and combinations of variables, that predict the actual utilization of schooling by individual families. Suggests these useful predictors: family characteristics, family economic status, family orientation toward education.…

Socioeconomic differences were controlled for an examination of longitudinal data on established critical factors in career salience of female college graduates. Details about mother's employment history, respondent's recollection of the attitudes of family members concerning that employment, and indicators of daughter's sex role ideology were…

The construction and interpretation of confidence intervals for the prediction of new cases in multiple regression analysis is explained. An example is provided. (JKS)

Kaufman and Sweet's article on the regression analysis of unbalanced factorial designs (EJ 111 767) is reviewed. A number of errors are noted, and relevant literature is cited. (GDC)