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Journal of Speech and Hearing Research Vol.36 927-930 October 1993.
© American Speech-Language-Hearing Association
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The Need for Replication

John R. Muma 1
1 University of Alberta Edmonton, Canada

Replication provides verification and disconfirmation functions for the scholarly fields. Relatively few replications were found in a survey of studies in JSHD and JSHR over a recent decade. Based on the probabilities of Type I and Type II errors, there are likely to be approximately 50 to 250 false findings in this literature. Because many studies had relatively small sample sizes, replication would be helpful for extending the generalization of their results. These data underscore the urgency for more replications in the field.

KEY WORDS: replication, Type I or II errors, small sample studies, science, philosophy of science

Submitted on November 20, 1992
Accepted on May 13, 1993






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