title: Negative Similarities Versus Correlational Similarities.
abstract: The relationship between correlational similarities and negative similarities was studied on political perception data. One sample of 199 subjects gave estimates of the degree of positive similarity among stimuli. The columns of the mean similarity were intercorrelated, yielding a matrix of correlational similarities. Another sample of 148 subjects gave also similarity estimates among the same stimuli but were allowed to express negative similarities when stimuli were perceived as opposite to each other, yielding a matrix of mean negative similarities. The linear relationship between corresponding elements in the two matrices was very high (r = .954). Further, a dimension analysis on respective data gave three corresponding, highly congruent dimensions. Implications of the high congruence between correlational and negative similarities are discussed.
authors.forename: B
authors.initials: B
authors.lastname: Ekehammar
authors.forename: J
authors.initials: J
authors.lastname: Sidanius