A procedure used in pairwise comparisons, under which the placement of descriptions of states (for example, of health) on a scale is quantified by requiring subjects to compare statements in pairs and to indicate which statement of the pair presents greater 'intensity'. Thurstone's Law is a probabilistic expression for the strength of this intensity. Named after the American psychometrician Louis Leon Thurstone (1887-1955). See Louis L. Thurstone (1928), 'Attitudes can be measured', American Journal of Sociology, 33, 529-54.
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