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Further Cross-Validation Analysis of the Bayesian m-Group Regression Method1:

Further Cross-Validation Analysis of the Bayesian m-Group Regression Method1: American Educational Research Journal Winter 1974, Vol 11, No. 1, Pp. 77-85 Further Cross-Validation Analysis of the Bayesian m-Group Regression Method* MELVIN R. NOVICK American College Testing Program PAUL H. JACKSON University College of Wales, Aberystwyth Novick, Jackson, Thayer, and Cole (1972) conducted a cross-validation study of the Bayesian m-group regression method developed by Jackson, Novick, and Thayer (1971) based on a theory described in Lindley and Smith (1972). The context of this cross validation was the use of ACT Assessment Scores to predict first semester grade point averages in traditional junior colleges. Within-group least squares regression lines were calculated in each of 22 carefully selected, academically oriented junior colleges using 1968 data and these lines were used for prediction on 1969 data. The principal focus of accuracy of prediction was on the average over colleges of the mean-squared errors when the predictions for persons were compared with their actual attained grade point averages. The primary conclusions of the study were based on a 25% within-college sample. The sample sizes ranged from 26 to 184. The average, over the 22 colleges, of the mean-squared errors for the within-college regression was .62. This represents the average result to be expected http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American Educational Research Journal SAGE

Further Cross-Validation Analysis of the Bayesian m-Group Regression Method1:

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References (12)

Publisher
SAGE
Copyright
Copyright © 2019 by American Educational Research Association
ISSN
0002-8312
eISSN
1935-1011
DOI
10.3102/00028312011001077
Publisher site
See Article on Publisher Site

Abstract

American Educational Research Journal Winter 1974, Vol 11, No. 1, Pp. 77-85 Further Cross-Validation Analysis of the Bayesian m-Group Regression Method* MELVIN R. NOVICK American College Testing Program PAUL H. JACKSON University College of Wales, Aberystwyth Novick, Jackson, Thayer, and Cole (1972) conducted a cross-validation study of the Bayesian m-group regression method developed by Jackson, Novick, and Thayer (1971) based on a theory described in Lindley and Smith (1972). The context of this cross validation was the use of ACT Assessment Scores to predict first semester grade point averages in traditional junior colleges. Within-group least squares regression lines were calculated in each of 22 carefully selected, academically oriented junior colleges using 1968 data and these lines were used for prediction on 1969 data. The principal focus of accuracy of prediction was on the average over colleges of the mean-squared errors when the predictions for persons were compared with their actual attained grade point averages. The primary conclusions of the study were based on a 25% within-college sample. The sample sizes ranged from 26 to 184. The average, over the 22 colleges, of the mean-squared errors for the within-college regression was .62. This represents the average result to be expected

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American Educational Research Journal – SAGE

Published: Nov 23, 2016

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