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| Linn, Robert L. | 4 |
| Werts, Charles E. | 4 |
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| Reports - Research | 1 |
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Werts, Charles E.; Linn, Robert L. – 1972
Given multiple independent measures of an underlying true factor and information on group membership, it is possible to compute a set of observed group means for each measure. Given at least three tests, these sets of means may be used to compute the reliability of the means for each test. The procedure for estimating true scores from the…
Descriptors: Factor Analysis, Mathematical Models, Research, Research Reports
Peer reviewedWerts, Charles E.; Linn, Robert L. – Educational and Psychological Measurement, 1972
The general problem of using group status to estimate true scores given multiple measures is considered in this paper. (Authors)
Descriptors: Error of Measurement, Group Status, Mathematical Applications, Multiple Regression Analysis
Peer reviewedWerts, Charles E.; Linn, Robert L. – Educational and Psychological Measurement, 1971
Descriptors: Analysis of Covariance, Correlation, Educational Environment, Error of Measurement
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
