The importance of beta, the type II error and sample size in the design and interpretation of the randomized control trial. Survey of 71 "negative" trials (Q34183760)
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Current Data About The importance of beta, the type II error and sample size in the design and interpretation of the randomized control trial. Survey of 71 "negative" trials
(P31) (Q13442814)
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(P304) 690-694
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(P407) (Q1860)

(P433) 13
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(P478) 299
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(P577) Friday, September 1, 1978
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(P921) (Q1436668)
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(P1433) (Q582728)
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(P1476) "The importance of beta, the type II error and sample size in the design and interpretation of the randomized control trial. Survey of 71 "negative" trials" (language: en)
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(P2093) Freiman JA
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Chalmers TC
(P1545) 2
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Smith H Jr
(P1545) 3
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Kuebler RR
(P1545) 4
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External Links
(P356) 10.1056/NEJM197809282991304
(P698) 355881