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Educational and Psychological… | 18 |

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Powers, Stephen | 18 |

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Peer reviewed

Powers, Stephen; And Others – Educational and Psychological Measurement, 1984

The Mathematics Attribution Scale-Algebra (MAS) was designed to assess attributions to ability, effort, task, and environment for success or failure in algebra. The study examined the reliability and validity of the MAS with high ability high school students. Results present a complicated picture of the psychometric properties of the MAS. (Author)

Descriptors: Academically Gifted, Algebra, Attitude Measures, Attribution Theory

Peer reviewed

Powers, Stephen; Medena, Marcello, Jr. – Educational and Psychological Measurement, 1984

The internal consistency reliability, concurrent validity, and stability of the Cooperative Preschool Inventory in English and Spanish editions were examined for monolingual English and monolingual Spanish Hispanic preschool pupils. The finding support the reliability, validity, and stability of both editions as used as well as the comparability…

Descriptors: Achievement Tests, English, Hispanic Americans, Preschool Children

Peer reviewed

Powers, Stephen; Jones, Patricia B. – Educational and Psychological Measurement, 1984

The six California Achievement Tests (CAT) subtests were factor analyzed separately for Black males, Black females, Hispanic males, Hispanic females, White males, and White females, in the fifth and seventh grades. the CAT was found to be essentially invariant with regard to race and sex. (Author/BS)

Descriptors: Achievement Tests, Blacks, Factor Structure, Hispanic Americans

Peer reviewed

Powers, Stephen; And Others – Educational and Psychological Measurement, 1984

Spanish speaking first graders were administered the Artes de Lenguage (ADL)--a Spanish, criterion-referenced, language arts test. Reliability analyses indicated the adequacy of three of the four subscales (Phonetic Analysis, Vocabulary Development, Comprehension Skills, and General Skills). A principal factors analysis of the intercorrelation…

Descriptors: Criterion Referenced Tests, Elementary Education, Grade 1, Hispanic Americans

Peer reviewed

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

Powers, Stephen; Crowder, Christopher – Educational and Psychological Measurement, 1982

The factorial structure of the California Achievement Test subtests appears to consist of only one common factor in each grade. This study indicates that there is considerable overlap among the subtests and that there is minimal support for the use of subtest scores as measures of independent constructs. (Author/PN)

Descriptors: Achievement Tests, Elementary Education, Factor Analysis, Factor Structure

Peer reviewed

Powers, Stephen; Rossman, Mark H. – Educational and Psychological Measurement, 1983

The reliability and validity of the Multidimensional-Multiattributional Causality Scale was examined for 350 American community college students, ranging in age from 17 to 59. The attributions of ability, effort, context, and luck emerged as well as distinctions between attributions related to academic success or failure. (Author/PN)

Descriptors: Attribution Theory, Ethnic Groups, Factor Structure, Locus of Control

Peer reviewed

Powers, Stephen; And Others – Educational and Psychological Measurement, 1983

The Multidimensional-Multiattributional Causality Scale (MMCS) was administered to 74 academically gifted high school students. Data analysis supported the factorial validity of the MMCS. However, several limitations of the scale are discussed. (Author/PN)

Descriptors: Academic Achievement, Attribution Theory, Gifted, High Schools

Peer reviewed

Powers, Stephen; And Others – Educational and Psychological Measurement, 1983

An examination of the predictive validity of the Stanford Mathematics Test included 426 Black and White eighth- and ninth-grade students. No significant differences were found in mean residuals by race. Differences of small magnitude occurred by sex in one cohort which indicated underprediction for females and overprediction for males. (Author/PN)

Descriptors: Achievement Tests, Intermediate Grades, Junior High Schools, Predictive Validity

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

Peer reviewed

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

Peer reviewed

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

Peer reviewed

Powers, Stephen; And Others – Educational and Psychological Measurement, 1986

The predictive validity of the Standard Progressive Matrices (SPM) was examined with a sample of 212 sixth-grade students and 214 seventh-grade students. Correlation coefficients between the SPM and the California Achievement Tests of Reading, Language, and Mathematics ranged from .34 to .60. (Author/LMO)

Descriptors: Abstract Reasoning, Academic Achievement, Cognitive Ability, Cognitive Tests

A Reliability and Validity Investigation of the Multidimensional-Multiattributional Causality Scale.

Peer reviewed

Powers, Stephen; And Others – Educational and Psychological Measurement, 1985

College students were administered the Multidimensional-Multiattributional Causality Scale (MMCS). Most of the 3-item subscales had adequate reliabilities. A factor analysis of intercorrelations of responses revealed three pure factors and three ambiguous factors. Results provide partial support for reliability and factorial validity of the MMCS.…

Descriptors: Attitude Measures, Attribution Theory, Factor Analysis, Factor Structure

Peer reviewed

Powers, Stephen; And Others – Educational and Psychological Measurement, 1985

Results of an administration of the Language Proficiency Measure indicated that the interrater reliability was adequate, internal-consistency reliability estimates were high, concurrent validity coefficients were adequate, and the classification validity was acceptable. (Author/LMO)

Descriptors: Elementary Education, Interrater Reliability, Language Proficiency, Language Tests

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