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A major problem in the research concerning distributional and other properties of reliability coefficients has been the non-existence or inaccessibility of adequate test data for use in empirical verification of hypothetical conclusions. The purpose of this paper is to develop a technique for the simulation of test item scores through the use of co

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DOCUMENT RESUME TM 000 658 ED 052 252 AUTHOR TITLE INSTITUTION Mendro, Robert A Procedure for the Simulation of Test Item Score Distributions. Illinois Univ., Urbana.
Dept.
of Educational Psychology. PUB DATE NOTE Apr 71 EDRS PRICE DESCRIPTORS EDRS Price MF-$0.65 HC-$3.29 *Computer Programs, Factor Analysis, Models, *Reliability, *Research Methodology, *Scores, *Simula:ion, Statistical Analysis, Test Reliability 15p. ABSTRACT A major problem in the research concerning distributional and other properties of reliability coefficients has been the non-eNistence or inaccessibility of adequate test data for use in empirical verification of hypothetical conclusions.
The purpose of this paper is to develop a technique for the simulation of test item scores through the use of computers.
The development is relatively straightforward, being based on the principal ideas of factor analysis and on the use of factor loading matrices.
Since the researcher determines the factor structure of the tests he simulateso sets the nature of the ability distribution of his simulated subjects, and has direct control over the reliability coefficient for the -population- from which he -draws- his tests, the procedure allows considerable flexibility.
The experimenter can easily simulate discrete or dichotomous scores if he desires.
Use of the technique does not require advanced programming skill.
The method is explicated and the computer program, along with an illustration of its use, is included.
(DG) U.S.
DEPARTMENT OF HEALTH.
EDUCATION & WELFARE OFFICE OF EDUCATION THIS DOCUMENT HAS BEEN REPRODUCED EXACTLY AS RECEIVED FROM THE PERSON OF A PRDCEDURE FOR TEE SEMEATION OF ORGANIZATION ORIGINATING IT POINTS OF VIEW OR OPINIONS STATED DO NOT NECESSARILY REPRESENT OFFICIAL OFFICE OF EDU CATION POSITION OR POLICY TEST ITEM SCORE DISTRIBUTIONS Robert Mandro Department o EducaZional Psychology University of Illinois O. Xntroduction A major problem in the rasearch concerning divtrib...






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