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Continuity Correction for Fisher's Exact Probability Test

Author

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  • John E. Overall

Abstract

Fisher's exact probability test is severely conservative when interpreted with reference to conventional alpha levels due to the discontinuity of the sampling distribution for 2 × 2 tables. An adjustment of the cell frequencies is proposed that results in a correction for continuity with appropriate alpha protection and increased power.

Suggested Citation

  • John E. Overall, 1980. "Continuity Correction for Fisher's Exact Probability Test," Journal of Educational and Behavioral Statistics, , vol. 5(2), pages 177-190, June.
    • Handle: RePEc:sae:jedbes:v:5:y:1980:i:2:p:177-190
    DOI: 10.3102/10769986005002177
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