For inference regarding relative potency in dilution assays with possible latent effects, a robust procedure is proposed. Monte Carlo studies show that this procedure compares favourably with h o r n procedures. The theory is illustrated by an application to the tolerances of c a b for tinctures of
Nonparametric estimation of potency ratio for dilution assays
โ Scribed by Mohamed A.A. Moussa
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 448 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0010-4825
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โฆ Synopsis
The paper considers the estimation of the potency of an unknown test preparation in relation to a standard in a dilution assay. The method utilizes the Mantel-Haenszel one degree of freedom chi-square approach to test consistency of the observed potency ratio with a range of alternative potency ratios. The method is nonparametric as it does not require any distributional assumptions. However, it requires the doses employed to be equally spaced logarithmically. The dose-response curve is also required to be monotone over the dose range used.
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