A method for determining optimum sample size in species diversity studies
β Scribed by Caprariis, Pascal ;Lindemann, Richard H. ;Collins, Catharine M.
- Book ID
- 105046800
- Publisher
- Springer
- Year
- 1976
- Tongue
- English
- Weight
- 316 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0020-5958
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π SIMILAR VOLUMES
The assessment of sample size in clinical trials comparing population means requires a variance estimate of the main efficacy variable. When this variance estimate has a low precision, it may be appropriate to use the data from the first patients entered in the trial ('internal pilot study') to esti
Object Γ Cohort studies in pharmacoepidemiology can result in a unique type of study, where subjects have complex types of exposure to drugs (with periods of non-exposure as well). The object of this paper is to explain how to calculate the sample size of such a study. Method Γ It is assumed that a