Descriptor
Mathematical Models | 11 |
Testing Problems | 11 |
True Scores | 11 |
Error of Measurement | 5 |
Correlation | 4 |
Equations (Mathematics) | 4 |
Scores | 4 |
Statistical Analysis | 3 |
Test Reliability | 3 |
Estimation (Mathematics) | 2 |
Item Analysis | 2 |
More ▼ |
Source
Journal of Educational… | 2 |
Educational Measurement:… | 1 |
Educational and Psychological… | 1 |
Psychometrika | 1 |
Sociometry | 1 |
Author
Wilcox, Rand R. | 2 |
Alwin, Duane F. | 1 |
Bird, Kevin D. | 1 |
Brennan, Robert L. | 1 |
Harris, Chester W. | 1 |
Harvill, Leo M. | 1 |
Linn, Robert L. | 1 |
Lord, Frederic M. | 1 |
Morse, David T. | 1 |
Morse, Linda W. | 1 |
Reckase, Mark D. | 1 |
More ▼ |
Publication Type
Reports - Evaluative | 5 |
Reports - Research | 4 |
Journal Articles | 3 |
Speeches/Meeting Papers | 2 |
Education Level
Audience
Researchers | 1 |
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Brennan, Robert L. – 1990
In 1955, R. Levine introduced two linear equating procedures for the common-item non-equivalent populations design. His procedures make the same assumptions about true scores; they differ in terms of the nature of the equating function used. In this paper, two parameterizations of a classical congeneric model are introduced to model the variables…
Descriptors: Equated Scores, Equations (Mathematics), Mathematical Models, Research Design

Lord, Frederic M. – Psychometrika, 1975
For the six available sets of empirical data, the discrimination (slope) parameter of the logistic item characteristic curve was found to have a significant positive correlation over items with the difficulty (location) parameter. This unpleasant situation can be eliminated by a suitably chosen transformation of the ability scale. (Author/RC)
Descriptors: Ability, Aptitude Tests, Correlation, Item Analysis

Wilcox, Rand R.; Harris, Chester W. – Journal of Educational Measurement, 1977
Emrick's proposed method for determining a mastery level cut-off score is questioned. Emrick's method is shown to be useful only in limited situations. (JKS)
Descriptors: Correlation, Cutting Scores, Mastery Tests, Mathematical Models

Bird, Kevin D. – Educational and Psychological Measurement, 1991
A method is outlined for analysis of the shape of an individual profile of scores on a standardized test battery. The method uses a simultaneous test procedure allowing for an overall test of profile flatness, with follow-up tests on all contrasts of interest. (SLD)
Descriptors: Equations (Mathematics), Hypothesis Testing, Mathematical Models, Profiles

Alwin, Duane F. – Sociometry, 1976
A structural equation model for attitude-behavior relationships is presented which conceptualizes attitude scales as congeneric measurements. The model represents a re-parameterization of an earlier one. (Author/RC)
Descriptors: Attitude Change, Attitude Measures, Behavior, Bias

Woodruff, David – Journal of Educational Measurement, 1991
Improvements are made on previous estimates for the conditional standard error of measurement in prediction, the conditional standard error of estimation (CSEE), and the conditional standard error of prediction (CSEP). Better estimates of how test length affects CSEE and CSEP are derived. (SLD)
Descriptors: Equations (Mathematics), Error of Measurement, Estimation (Mathematics), Mathematical Models
Wilcox, Rand R. – 1978
Two fundamental problems in mental test theory are to estimate true score and to estimate the amount of error when testing an examinee. In this report, three probability models which characterize a single test item in terms of a population of examinees are described. How these models may be modified to characterize a single examinee in terms of an…
Descriptors: Achievement Tests, Comparative Analysis, Error of Measurement, Mathematical Models
Reckase, 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
Morse, David T.; Morse, Linda W. – 1976
Performance testing often entails the usage of expensive, time-consuming measures in the quest for determining the level of performance on some desired behavior. It is concluded that a generalizability theory approach to dealing with departures from reality in testing can aid in the establishment of empirically-based choices of measurement…
Descriptors: Cost Effectiveness, Decision Making, Mathematical Models, Measurement Techniques

Harvill, Leo M. – Educational Measurement: Issues and Practice, 1991
This paper discusses standard error of measurement (SEM), the amount of variation or spread in the measurement errors for a test, and gives information needed to interpret test scores using SEMs. SEMs at various score levels should be used in calculating score bands rather than a single SEM value. (SLD)
Descriptors: Definitions, Equations (Mathematics), Error of Measurement, Estimation (Mathematics)
Werts, Charles E.; Linn, Robert L. – 1975
Forming a sequence covering the various aspects of the simplex model, four articles are presented here under the following titles: "A Simplex Model for Analyzing Academic Growth", "Analyzing Ratings With Correlated Intrajudge Measurement Errors", "The Correlation of States With Gain", and "The Reliability of…
Descriptors: Academic Achievement, Achievement Gains, Analysis of Covariance, College Students