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The need for replication

J R Muma1

  • 1Department of Speech Pathology and Audiology, University of Alberta, Edmonton, Canada.

Journal of Speech and Hearing Research
|October 1, 1993
PubMed
Summary
This summary is machine-generated.

Few replications were found in speech and hearing journals, suggesting many false findings. More replication studies are urgently needed to verify research in speech and hearing science.

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Area of Science:

  • Speech and Hearing Science
  • Scholarly Communication

Background:

  • Replication is crucial for scientific verification and disconfirmation.
  • A survey of recent literature in the Journal of Speech and Hearing Disorders (JSHD) and the Journal of Speech and Hearing Research (JSHR) revealed a low number of replication studies.

Purpose of the Study:

  • To assess the frequency of replication studies in JSHD and JSHR over the past decade.
  • To estimate the potential number of false findings in the speech and hearing literature.
  • To highlight the need for increased replication to ensure research validity.

Main Methods:

  • Survey of studies published in JSHD and JSHR over a ten-year period.
  • Analysis of the literature to identify replication attempts.
  • Estimation of false findings based on probabilities of Type I and Type II errors.

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Main Results:

  • A low number of replication studies were identified in the surveyed journals.
  • An estimated 50 to 250 false findings may exist within this body of literature.
  • Many studies in the field suffer from small sample sizes, limiting the generalizability of their findings.

Conclusions:

  • The scarcity of replication in speech and hearing science raises concerns about the reliability of published findings.
  • Increased replication efforts are essential for validating existing research and extending the generalizability of results.
  • There is an urgent need to prioritize and conduct more replication studies in the field of speech and hearing.