Estimates of the Gain in Power Utilizing Transformations of DMFS Scores
- 1 September 1983
- journal article
- research article
- Published by SAGE Publications in Journal of Dental Research
- Vol. 62 (9) , 992-996
- https://doi.org/10.1177/00220345830620091601
Abstract
More than 100,000 clinical caries trials were simulated utilizing the negative binomial distribution on a UNIVAC 1100 computer. In each trial, the raw data and logarithmic transformed data were analyzed using a standard t test analysis. The results were summarized as estimates of the power functions for each case. In almost all cases, the transformed data gave greater power than did the untransformed data. In several common situations, the differences were dramatic.This publication has 3 references indexed in Scilit:
- Development and distribution of proximal caries in 303 9–20‐year‐old individuals in a Copenhagen suburbEuropean Journal of Oral Sciences, 1980
- Adequate cohort sizes for caries clinical trialsCommunity Dentistry and Oral Epidemiology, 1978
- The appropriateness of analysis of variance to the statistical analyses of dental clinical trialsArchives of Oral Biology, 1972