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Download full textReckase, Mark D.; And Others – 1985
Factor analysis is the traditional method for studying the dimensionality of test data. However, under common conditions, the factor analysis of tetrachoric correlations does not recover the underlying structure of dichotomous data. The purpose of this paper is to demonstrate that the factor analyses of tetrachoric correlations is unlikely to…
Descriptors: Correlation, Difficulty Level, Factor Analysis, Item Analysis
Tomsic, Margie L.; And Others – 1987
Extended caution indices (ECI) specify the degree of confidence that can be placed in an individual's test score by analyzing patterns of item response. Among the most promising of such indices are the standardized ECIs. Contrary to the literature, several instances were found, in a previous study, of nonnormal distributions of ECIs with samples…
Descriptors: Achievement Tests, Elementary Education, Goodness of Fit, Latent Trait Theory
Jones, Patricia B.; Sabers, Darrell L. – 1984
Several techniques have been developed for creating continuous smooth distributions of test norms. This paper describes two studies that explore the behavior of cubic splines in order to determine their appropriateness for use in test norming. The first study uses data from the Curriculum Referenced Tests of Mastery (CRTM) and employs two…
Descriptors: Equated Scores, Goodness of Fit, Measurement Techniques, Norm Referenced Tests
Santmire, Toni E. – 1984
The purpose of this paper is to discuss ways in which developmental psychology suffers from the lack of an appropriate technology of measurement and statistical analysis. The paper begins by noting that developmental psychology is the study of change; that individuals develop through a succession of "stages" which are separated by…
Descriptors: Data Analysis, Data Collection, Developmental Psychology, Developmental Stages
Sarvela, Paul D. – 1986
Four discrimination indices were compared, using score distributions which were normal, bimodal, and negatively skewed. The score distributions were systematically varied to represent the common circumstances of a military training situation using criterion-referenced mastery tests. Three 20-item tests were administered to 110 simulated subjects.…
Descriptors: Comparative Analysis, Criterion Referenced Tests, Item Analysis, Mastery Tests
Eads, Gerald M., II; And Others – 1986
The purpose of this research was to develop and test a method of identifying groups of students participating in a mandated statewide norm-referenced testing program who have undergone highly specific training in preparation for, or coaching during, test administration. The implementation of the analysis procedure was intended not only to identify…
Descriptors: Elementary Secondary Education, Goodness of Fit, Grade 11, Grade 4
