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| Linn, Robert L. | 2 |
| Cahen, Leonard S. | 1 |
| Werts, Charles E. | 1 |
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| Reports - Research | 1 |
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Peer reviewedCahen, Leonard S.; Linn, Robert L. – American Educational Research Journal, 1971
Johnson-Neyman, Potthoff, and Erlander and Gustavsson techniques for obtaining confidence regions for the difference between regression surfaces are compared. (DG)
Descriptors: Aptitude Treatment Interaction, Grouping (Instructional Purposes), Interaction Process Analysis, Mathematical Models
Download full textWerts, Charles E.; Linn, Robert L. – 1975
Forming a sequence covering the various aspects of the simplex model, four articles are presented here under the following titles: "A Simplex Model for Analyzing Academic Growth", "Analyzing Ratings With Correlated Intrajudge Measurement Errors", "The Correlation of States With Gain", and "The Reliability of…
Descriptors: Academic Achievement, Achievement Gains, Analysis of Covariance, College Students
