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Confidence Level and Significance Level: Semantic Confusion or Logical Fallacy

William M. Stallings and Sushila Singhal
The Journal of Experimental Education
Vol. 37, No. 4 (Summer, 1969), pp. 57-59
Published by: Taylor & Francis, Ltd.
Stable URL: http://www.jstor.org/stable/20157059
Page Count: 3
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Confidence Level and Significance Level: Semantic Confusion or Logical Fallacy
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Abstract

Despite repeated warnings against its usage, researchers and textbook authors continue to employ the phrase "level of confidence" as a synonym for the phrase "level of significance." Three possible sources of this incorrect usage are noted: (a) imitation; (b) the related but different concepts of fiducial inference and confidence interval estimation; and (c) the myriad of terms associated with confidence. It is recommended that the magnitude of level of confidence be restricted to that of the complement of the level of significance and also that the term level of confidence should be used only in connection with interval estimation.

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