Accession Number : AD0784387

Title :   Controlling Bias in Observational Studies: A Review.

Descriptive Note : Technical rept.,

Corporate Author : HARVARD UNIV CAMBRIDGE MASS DEPT OF STATISTICS

Personal Author(s) : Cochran,William G. ; Rubin,Donald B.

Report Date : JUN 1974

Pagination or Media Count : 62

Abstract : This paper reviews work on the effectiveness of different methods of matched sampling and statistical adjustment, alone and in combination, in reducing bias due to confounding x-variables when comparing two populations. The adjustment methods were linear regression adjustment for x continuous and direct standardization for x categorical.

Descriptors :   *Statistical analysis, Bias, Analysis of variance, Regression analysis, Sampling, Multivariate analysis, Estimates

Subject Categories : Statistics and Probability

Distribution Statement : APPROVED FOR PUBLIC RELEASE