Age Differences in Relationships Between

ABSTRACT One hundred and sixty-two subjects of three age levels were tested to examine the relationship between crystallized and fluid abilities and three problem solving tasks varying in the abstractness/concreteness of their stimuli and emphasis on past experience. These dimensions have been used by Davis to distinguish between Type "0" and Type "C" problem solving. Predictions regarding problem solving made from the crystallized-fluid intelligence theory of Horn and Cattell were supported only in the elderly group of subjects. Between factor relationships supported a reintegration gf abilities in old age, ,zontrary to crystallized-fluid theory predictions made on the basis of previous research. Results suggested that a reinterpretation of age-related trends in ability-performance relations is warranted emphasizing the roles of cohort specificity and individual differences in such relationships. (Author)