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Concerning " Reliability" of Tests

Concerning " Reliability" of Tests FRANK DUDEK 1 J. University of Nebraska Tms is a of some evidence con- report description empirical factors the coefficient of It seems, cerning influencing reliability. that we tend to think of in times, many &dquo;reliability&dquo; only terms of a and to more coefficient, computed place emphasis on its than on a value or in de- magnitude interpreting given its Often a coefficient is com- termining reliability implications. the method and then a &dquo;corrected&dquo; relia- by puted split-half is determined for the total test the bility by applying formula. is a This valid However, Spearman-Brown procedure. corrected be with the the value that may implication reported of future on the of these scores basis predictions performance will be as accurate as indicated this corrected by reliability. That this not be true is illustrated the of the data may by The is that the coefficient has present study. point reliability in relation to the in which it is and meaning only way computed the manner in which it is interpreted. Procedure who volunteered from individuals, Sixty-two psychology at Northwestern served as The classes University, subjects. test was the Seashore Photo-electric employed Target Register, which is a test of arm-hand steadiness http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Educational and Psychological Measurement SAGE

Concerning " Reliability" of Tests

Dudek, Frank J.
Educational and Psychological Measurement , Volume 12 (2): 7 – Jul 1, 1952
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References (1)

Publisher
SAGE
Copyright
Copyright © by SAGE Publications
ISSN
0013-1644
eISSN
1552-3888
DOI
10.1177/001316445201200211
Publisher site
See Article on Publisher Site

Abstract

FRANK DUDEK 1 J. University of Nebraska Tms is a of some evidence con- report description empirical factors the coefficient of It seems, cerning influencing reliability. that we tend to think of in times, many &dquo;reliability&dquo; only terms of a and to more coefficient, computed place emphasis on its than on a value or in de- magnitude interpreting given its Often a coefficient is com- termining reliability implications. the method and then a &dquo;corrected&dquo; relia- by puted split-half is determined for the total test the bility by applying formula. is a This valid However, Spearman-Brown procedure. corrected be with the the value that may implication reported of future on the of these scores basis predictions performance will be as accurate as indicated this corrected by reliability. That this not be true is illustrated the of the data may by The is that the coefficient has present study. point reliability in relation to the in which it is and meaning only way computed the manner in which it is interpreted. Procedure who volunteered from individuals, Sixty-two psychology at Northwestern served as The classes University, subjects. test was the Seashore Photo-electric employed Target Register, which is a test of arm-hand steadiness

Journal

Educational and Psychological Measurement – SAGE

Published: Jul 1, 1952

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