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Title A standard for test reliability in group research
Source Behavior Research Methods, 45, 1, pp. 16-24
Year 2013
Database SpringerLink
Access date 06.04.2013

Many authors adhere to the rule that test reliabilities should be at least .70 or .80 in group research. This article introduces a new standard according to which reliabilities can be evaluated. This standard is based on the costs or time of the experiment and of administering the test. For example, if test administration costs are 7 % of the total experimental costs, the efficient value of the reliability is .93. If the actual reliability of a test is equal to this efficient reliability, the test size maximizes the statistical power of the experiment, given the costs. As a standard in experimental research, it is proposed that the reliability of the dependent variable be close to the efficient reliability. Adhering to this standard will enhance the statistical power and reduce the costs of experiments.

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Year of publication2013
Bibliographic typeJournal article
Full text availabilityAvailable on request

Web survey bibliography (4086)