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Estimating roundworm burdens and group sizes in anthelmintic trials with sheep and cattle

✍ Scribed by C.J. Clark; J.A. Turton

Book ID
115899168
Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
464 KB
Volume
34
Category
Article
ISSN
0014-4894

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Planning group sizes in clinical trials
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✍ Hubert J. A. Schouten πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 119 KB πŸ‘ 2 views

Simple formulae have been derived for the accurate computation of sample sizes when the two-sample t-test is used. Required sample sizes may be reduced by taking repeated measures, especially if correlations are about equal. In a trial with two parallel groups, repeated measures may be summarized by