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West, Leo H. T.; Theobald, John H. – 1981
This paper describes an analytical solution to a common problem in aptitude-treatment interaction (ATI). The researcher is often interested in the comparison between treatments for a large set of attributes. If this set is large, the chance of non-orthogonality is correspondingly large. In these circumstances the analysis and interpretation…
Descriptors: Academic Achievement, Aptitude Treatment Interaction, Biology, Foreign Countries
Peer reviewed Peer reviewed
Fraser, Barry J. – Multiple Linear Regression Viewpoints, 1979
A model for research on teacher effects in which the variance in student outcome post-test performance is attributed to pre-test perfomance; to separate construct domains of student, instructional, and teacher variables; and to interactions between variables in these three construct domains is presented and tested. (Author/JKS)
Descriptors: Achievement Gains, Foreign Countries, Junior High Schools, Mathematical Models
Wysocki, James C. – 1977
The performance of the University of Arizona College of Medicine's graduating class of 1976 on the National Board of Medical Examiners (NBME) Parts I and II was analyzed in a structural equation model. Although the primary emphasis of this paper is toward model development, the effects of several background and demographic variables such as age,…
Descriptors: Critical Path Method, Grade Point Average, Higher Education, Mathematical Models
Burstein, Leigh – 1976
Two questions are investigated here: What should the unit of analysis be in investigations of educational effects and on what basis should the units be chosen Under what conditions can relationships among measurements on individuals be estimated from the relationships among measurements on aggregates of individuals? Models using standard analysis…
Descriptors: Analysis of Covariance, Analysis of Variance, Comparative Analysis, Correlation
Henderson, Ronald W.; Landesman, Edward M. – 1986
This report explores the student background characteristics that might be associated with success or failure in calculus and evaluates the effectiveness of remedial mathematics education. The sample consisted of two groups at the University of California, Santa Cruz: (1) all students (105) who took first quarter calculus in spring, 1985; and (2)…
Descriptors: Calculus, Correlation, Grade Point Average, Higher Education
Rim, Eui-Do; Coller, Alan R. – 1978
A broad spectrum of methodologies pertinent to studies of schooling effects are reviewed. Methodological issues and problems are addressed according to a three-dimensional conceptual framework: (1) indicators of schooling effects; (2) study approaches; and (3) units of analysis. Problems and uses of status attainment and difference scores as…
Descriptors: Analysis of Covariance, Analysis of Variance, Correlation, Educational Research