The current study tested whether the purely amodal cue of contingency elicits orientation following behavior in 8-month-old infants. We presented 8-month-old infants with automated objects without human features that did or did not react contingently to the infants' fixations recorded by an eye tracker. We found that an object's occasional…

Developmental science rests on describing, explaining, and optimizing intraindividual changes and, hence, empirically requires longitudinal research. Problems of missing data arise in most longitudinal studies, thus creating challenges for interpreting the substance and structure of intraindividual change. Using a sample of reports of longitudinal…

Implications of the findings for the programming of institutions for the retarded are discussed. (Authors)

Results of the study generally support the position that moral ideology is related to identity status. (Authors)

The topic of an optimal or utopian life has received much attention across the humanities and the arts but not in psychology. The German concept of Sehnsucht captures individual and collective thoughts and feelings about one's optimal or utopian life. Sehnsucht (life longings; LLs) is defined as an intense desire for alternative states and…

A general developmental model for interindividual differences, intraindividual differences, and intraindividual changes is described in terms of individuals, variables, and occasions. (ST)

Wernerian developmental theory is used to examine both the kinds of changes in impressions of others that occur with development and the conditions under which relatively immature impressions may be produced by presumably mature individuals. (Authors)

The orderly increase in the proportion of subjects who make optional reversal shifts over an age scale that now encompasses a range from 3 to 18 is confirmed. (Authors)

Given a chance to eat the candy or drink the juice in this study, the 5-year-olds, 7-year-olds and young adults failed to conserve and made choices based on what they said was appearance of greater quantity rather than upon the already established equivalencies. (Authors/CB)

The connotative structure of self-concept was examined by factor analysis of a semantic differential instrument and found to be essentially constant through adolescence, more so for boys than for girls. (Author)

From this study it might be concluded that the development of conservation of quantity cannot be explained by maturation. (Author)

Results suggest that biodata provide a reliable set of measures to be used in the prediction of need for approval in male college freshmen. (Authors)

Personal time perspective was defined as self-assessment at present in comparison with 5 years backward (retrotension) and forward (protension). (Authors)

Analyzes the logical basis of testing developmental order hypotheses with categorical measures. Argues that depending on whether saltatory or continuous developmental changes are being assessed, the observed relationship between categorical measures yields different types of information about developmental ordering. Maintains that when change is…