Abstract
Sjöberg, L. The law of comparative judgment: a case not assuming equal variances and covariances. Scand. J. Psychol., 1962, 3, 219–225.—Anew case of the law of comparative judgment is described. It utilizes information contained in the tetrachoric correlations between pairs of stimuli. A multivariate normal distribution of subjective values is assumed. A second assumption is that covariances are unaffected by changes in ‘surrounding’ stimuli. The computational work is rather heavy but programs for two Swedish computers are now available in Algol code.