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| Multiple Regression Analysis | 3 |
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Peer reviewedNewman, Isadore; Thomas, Jay – Multiple Linear Regression Viewpoints, 1979
Fifteen examples using different formulas for calculating degrees of freedom for power analysis of multiple regression designs worked out by Cohen are presented, along with a more general formula for calculating such degrees of freedom. (Author/JKS)
Descriptors: Hypothesis Testing, Mathematical Models, Multiple Regression Analysis, Power (Statistics)
Peer reviewedMalgady, Robert G.; Huck, Schuyler W. – Educational and Psychological Measurement, 1978
The t ratio used in testing the difference between two independent regression coefficients is generalized to the multivariate case of testing the difference between two vectors of regression coefficients. This is particularly useful in determining which of two variables best predicts a number of criterion variables. (Author/JKS)
Descriptors: Correlation, Hypothesis Testing, Matrices, Multiple Regression Analysis
Flint, David L.; And Others – 1979
This study tests the general hypothesis that preschool experience has a measurable effect upon children's noncognitive development between the time they enter and the time they leave the preschool program. The California Preschool Competency Scale (CPSCS) was administered to 4-year-old children in a prekindergarten program (PreK) in the fall of…
Descriptors: Early Experience, Hypothesis Testing, Interpersonal Competence, Longitudinal Studies
