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References (4)
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L. Guttman (1945)
A basis for analyzing test-retest reliabilityPsychometrika, 10
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L. Cronbach, W. Warrington (1951)
Time-limit tests: Estimating their reliability and degree of speedingPsychometrika, 16
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L. A new approach to factor analysis Guttman (1954)
the radex. In Lazarsfeldet al.Lazarsfeldet al
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L. Guttman (1953)
Reliability formulas that do not assume experimental independencePsychometrika, 18
- Publisher
- Springer Journals
- Copyright
- 1955 Psychometric Society
- ISSN
- 0033-3123
- eISSN
- 1860-0980
- DOI
- 10.1007/BF02288984
- Publisher site
- See Article on Publisher Site
Abstract
Abstract New formulas are developed to give lower bounds to the reliability of a test, whether or not all respondents attempt all items. The formulas apply in particular, then, to completed tests, pure speed tests, pure power tests, and any mixture of speed and power. For the case of completed tests, the formulas give the same answer as certain standard ones; for noncompleted tests the formulas give a correct answer where previous standard formulas are inappropriate. The formulas hold both in the sense of retest reliability and of parallel tests.
Journal
Psychometrika – Springer Journals
Published: Jun 1, 1955
Keywords: Psychometrics; Assessment, Testing and Evaluation; Statistics for Social Sciences, Humanities, Law; Statistical Theory and Methods