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Powers, Stephen; Jones, Patricia B. – Educational and Psychological Measurement, 1986
This paper describes two BASIC computer programs that calculate Hotelling's T-square either for one sample or for two samples. Output of the progams includes the Mahalanobis distance D-square, the F ratio associated with T-square, and its probability level. (Author)
Descriptors: Computer Software, Microcomputers, Multivariate Analysis
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Powers, Stephen; Gose, Kenneth C. – Educational and Psychological Measurement, 1986
A BASIC computer program is described which computes the Stuart-Maxwell test with its chi-square value and associate probability level. Following a significant chi-square test, the user has the option of performing multiple comparisons using McNemar's test for the significance of change. (Author)
Descriptors: Algorithms, Computer Software, Input Output, Microcomputers
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Powers, Stephen – Educational and Psychological Measurement, 1984
This paper describes a microcomputer program that extracts principal components from a correlation matrix and rotates them to a varimax solution. Eigenvalues, variances associated with each component, unrotated component loadings, and varimax rotated loadings are output by the program. (Author)
Descriptors: Computer Software, Correlation, Factor Analysis, Microcomputers
Peer reviewed Peer reviewed
Powers, Stephen; Jones, Patricia – Educational and Psychological Measurement, 1986
This paper describes a computer program which tests all pairwise comparisons of adjusted means in analysis of covariance by using Tukey-Kramer Test. The program contains: means of covariate, adjusted means of the criterion measure, sample size, mean square error, and the desired percentile point on the Studentized range distribution. (JAZ)
Descriptors: Analysis of Covariance, Comparative Analysis, Computer Software, Microcomputers
Powers, Stephen; Price-Johnson, Connie – Online Submission, 2007
Background: The Waterford Early Math & Science (WEMS) program is a comprehensive educational software program designed to build math and science skills and concepts in grades K-2, alone or to supplement existing curricula. The program's capability to individualize lessons, assess and track student progress, and reteach lessons is aimed at…
Descriptors: Achievement Tests, Mathematics Achievement, Science Achievement, Comparative Analysis
Powers, Stephen; Price-Johnson, Connie – Online Submission, 2006
Background: The Waterford Early Reading Program (WERP), a technology-based program for early elementary grades, was provided through Arizona all day kindergarten funds to kindergarten students in 15 Title I elementary schools in the Tucson Unified School District (TUSD) in the 2005-06 school year. The purpose of this study is to evaluate the…
Descriptors: Early Reading, Reading Programs, Reading Achievement, Reading Tests