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Estimating the Covariance Matrix of the Random Components in the Mixed Model Appropriate to Single Sample Repeated Measures Data
Peer reviewed Peer reviewed
Schmidt, William H.; Scheifley, Verda – American Educational Research Journal, 1973
Descriptors: Analysis of Covariance, Factor Analysis, Mathematical Models, Nonparametric Statistics
On the Power of Statistical Tests in the "American Educational Research Journal"
Peer reviewed Peer reviewed
Brewer, James K. – American Educational Research Journal, 1972
Purpose of this paper is to report the level of power for recent statistical tests reported in the AERJ and to propose alternative reporting schemes relative to hypothesis testing to include power and effect size. (Author)
Descriptors: Hypothesis Testing, Mathematical Applications, Power (Statistics), Research Reviews (Publications)
The Effects of Class Size: An Examination of Rival Hypotheses.
Peer reviewed Peer reviewed
Hedges, Larry V.; Stock, William – American Educational Research Journal, 1983
The results of reanalyses of statistical procedures used in the class-size meta-analyses by Glass and Smith are reported. The analyses suggest that the use of suboptimal statistical methods did not greatly affect the results of the meta-analyses by Glass and Smith. (Author/PN)
Descriptors: Academic Achievement, Class Size, Estimation (Mathematics), Hypothesis Testing
Statistical Descriptors of School Classes
Peer reviewed Peer reviewed
Lohnes, Paul R. – American Educational Research Journal, 1972
It may be useful in evaluation research to employ the class as the unit of analysis, assessing its syntality by a vector of distribution cumulants or indices for each of several input tests administered. (Author)
Descriptors: Classes (Groups of Students), Evaluation Methods, Input Output Analysis, Mathematical Models