
Accession Number : AD0726719
Title : Data Transformation in TwoWay Analysis of Variance.
Descriptive Note : Technical rept.,
Corporate Author : EDUCATIONAL TESTING SERVICE PRINCETON N J
Personal Author(s) : Schlesselman,James J.
Report Date : MAY 1971
Pagination or Media Count : 250
Abstract : One purpose of data transformation is to better satisfy the fundamental assumptions of statistical analysis by linear models: (a) Additivity; (b) Homogeneity of variance; (c) Normality. If the original data do not satisfy (a)  (c), a nonlinear transformation may improve approximation to these ideal conditions. This paper considers estimation of the parameter lambda of the family of power transformations, Y(sub T)(Sup lambda) = Y sup lambda if lambda not = 0, Y(Sub T)(Sup lambda) = log Y if lambda = 0 for data conforming to a replicated twoway crossed classification. (Author)
Descriptors : (*STATISTICAL DATA, *ANALYSIS OF VARIANCE), TRANSFORMATIONS(MATHEMATICS), CONFIDENCE LIMITS, REGRESSION ANALYSIS, STATISTICAL DISTRIBUTIONS, APPROXIMATION(MATHEMATICS), ASYMPTOTIC SERIES, THESES
Subject Categories : Statistics and Probability
Distribution Statement : APPROVED FOR PUBLIC RELEASE