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Analysis of Covariance: Its Model and Use in Psychological Research.
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Porter, Andrew C.; Raudenbush, Stephen W. – Journal of Counseling Psychology, 1987
Discusses analysis of covariance (ANCOVA), a standard tool for data analysis in psychological research. Considers the two major ways in which psychologists have used the technique: for increasing the precision of estimation in randomized experiments and for seeking to remove bias in nonrandomized studies, comparing ANCOVA with analytic…
Descriptors: Analysis of Covariance, Behavioral Science Research, Data Analysis, Estimation (Mathematics)
Use of Multiple Regression in Counseling Psychology Research: A Flexible Data-Analytic Strategy.
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Wampold, Bruce E.; Freund, Richard D. – Journal of Counseling Psychology, 1987
Explains multiple regression, demonstrates its flexibility for analyzing data from various designs, and discusses interpretation of results from multiple regression analysis. Presents regression equations for single independent variable and for two or more independent variables, followed by a discussion of coefficients related to these. Compares…
Descriptors: Behavioral Science Research, Counseling, Data Analysis, Multiple Regression Analysis
Methodological Issues in Life-Span Developmental Psychology from a Dialectical Perspective.
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Buss, Allan R. – International Journal of Aging and Human Development, 1979
ANOVA designs are used for description and/or explanation of developmental phenomena. These consist of taking any two of age, cohort, or time of measurement as independent variables. Employment of ANOVA has led researchers down blind alleys. Regression techniques are more useful. (Author)
Descriptors: Analysis of Variance, Behavioral Science Research, Data Analysis, Developmental Psychology