Subjects ranged from 60 to 90 years old. (MS)

Three age groups were read the same short story. Their responses to interpretive questions were taken as texts and analyzed for age-distinctive word usage. Characteristic forms of talk were found, and age-specific patterns of interpretive thinking were derived from the forms. In general, 10 year olds saw a plot, adolescents a plight, and adults a…

Comments on the study reported by Feldman and others in this issue. Suggests that, in the study, subjects' word frequencies might be the result of subjects' familiarity with the words rather than the words' narrative role and that there is uncertainty in inferring interpretive patterns of subjects from word frequencies. (BC)

Replies to the commentary by Olson and Salter on an article by Feldman and others, both reported in this issue. Maintains that the evidence does not support Olson's and Salter's conjecture that the source of age-distinctive lexical differences reported in the Feldman study is a simple function of word frequency. (BC)

Although the ability to conserve number held up well with age, quantity conservation performance was generally lower in the subjects over 65 years of age than in the college and adult age groups. (Author)

Paper is based on a Master's Thesis submitted by the senior author to the Department of Psychology, Brandeis University, 1967. (IR)

Formal and familiar materials were used to test Piagetian classification and formal operational abilities in two groups of educated adults: one group aged 30-38 and the other aged 57-82 years. Subjects did not show mastery of the tasks. Results suggest a new model of cognitive lifespan development. (Author/MS)

A study of whether perceptual processes of children can be viewed within a structuralist frame of reference and whether the concept of the group of transformations and related notions can be used to formulate perceptual phenomena and to predict experimental results. (Author/CS)

Studies the effects of perceptual salience on performance in problems requiring the coordination of information. Subjects were groups of children, younger adults, and older adults. For each of the age groups, those problems containing the most salient information were solved faster and more accurately than problems containing the least salient…

Several experiments with 8- to 9-year-old children are reported to demonstrate that "decalage" observed between success in problems of conservation of weight, volume, and density is due to the different task situation as presented by Piaget and Inhelder. (Author)

Investigates differences between adolescents and older adults in their explanations of linguistic metaphors. Adults displayed a synthesizing, integrative perspective, while adolescents displayed an analytic perspective in their explanation of metaphors. (Author/SS)