Journal of Dental Research, Vol 56, 460-464, Copyright © 1977 by International & American Associations for Dental Research Online Journals
Measuring treatment and scale bias effects by linear regression in the analysis of OHI-S scores
B. J. Moore
A linear regression model is presented for estimating unbiased treatment
effects from OHI-S scores. An example is given to illustrate an analysis
and to compare results of an unbiased regression estimator with those based
on a biased simple difference estimator.