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Direct linkHolahan, John M.; Ferrer, Emilio; Shaywitz, Bennett A.; Rock, Donald A.; Kirsch, Irwin S.; Yamamoto, Kentaro; Michaels, Reissa; Marchione, Karen E.; Shaywitz, Sally E. – Journal of Psychoeducational Assessment, 2018
We systematically assessed the relationships between growth of four components of verbal ability--Information, Similarities, Vocabulary, and Comprehension subtests of the Wechsler Intelligence Scale-Revised--and longitudinal growth from Grades 1 to 9 of the Woodcock-Johnson Psycho-Educational Battery Passage Comprehension subtest while controlling…
Descriptors: Student Development, Reading Achievement, Reading Comprehension, Verbal Ability
Peer reviewedRock, Donald A.; And Others – Educational and Psychological Measurement, 1970
Descriptors: Monte Carlo Methods, Multiple Regression Analysis, Predictive Measurement, Predictor Variables
Peer reviewedRock, Donald A.; And Others – American Educational Research Journal, 1972
The effects of college environments on student achievement as measured by the three Graduate Record Examinations Area Tests were studied when the initial ability of students was controlled. (CK)
Descriptors: Academic Achievement, Academic Aptitude, Achievement Tests, Cluster Grouping
Peer reviewedRock, Donald A.; And Others – Multivariate Behavioral Research, 1978
Systematic procedures are outlined for testing the assumption made on the dependent variables in a variety of statistical techniques. Specifically, procedures are outlined for testing the assumption that the dependent variables are measuring the same constructs in the same metrics with equivalent reliabilities across all subgroups. (Author/JKS)
Descriptors: Analysis of Covariance, Analysis of Variance, Discriminant Analysis, Higher Education
Download full textRock, Donald A. – ETS Research Report Series, 2007
This study addressed concerns about the potential for differential gains in reading during the first 2 years of formal schooling (K-1) versus the next 2 years of schooling (1st-3rd grade). A multilevel piecewise regression with a node at spring 1st grade was used in order to define separate regressions for the two time periods. Empirical Bayes…
Descriptors: Reading Achievement, Achievement Gains, Elementary School Students, Longitudinal Studies
Rock, Donald A.; And Others – 1971
The effects of college environments on student achievement on three GRE area achievement tests, when the initial ability of students was controlled were studied. A wide variety of environmental measures for 95 colleges were included. The method computed within-school regression lines, then colleges were clustered on regression lines, using a…
Descriptors: Academic Ability, Academic Achievement, Achievement Tests, Aptitude
