title: Identifying Interindividual Judgment Differences: Indscal Or Three-Mode Factor Analysis?
abstract: Seventy subjects judged 9 key-politicians of the German parliamentary scene on 22 bipolar seven-point attribute scales. Profile similarities were computed for each possible stimulus pair separately for each individual. The resulting proximity matrices were analyzed with "INDSCAL." Additionally, three-mode factor analysis was applied to the original three-way data matrix. The results of the two methods are compared. Special attention is given to the problem of how interindividual judgment differences are reflected by the individual parameters of the two models; these are the INDSCAL-weights and the factor scores of an extended core matrix. The results suggest that three-mode factor analysis is more suitable, if interindividual judgment differences are to be described by means of a spatial model.
authors.forename: F
authors.initials: F
authors.lastname: Rosler