Data suggest that infants with high vagal tone were more reactive than infants with low vagal tone to positive and negative events at 5 months, and were more sociable at 14 months. Infant reactivity to mildly stressful events seemed to be a stable dimension during the first year. (RH)

A choice assessment was used to categorize reinforcers as high, middle, and low preference with 4 males (ages 7 to 19) with multiple disabilities including severe/profound mental retardation. High-preference stimuli consistently functioned as reinforcers for all subjects whereas low-preference stimuli did not function as reinforcers. (Author/DB)

The development of early vocalizations was investigated with 13 infants who had Down's syndrome and 27 infants developing normally, at bimonthly intervals from 4 to 18 months of age. Both groups demonstrated increased production of mature syllables over time as well as large variations in vocal development, both within and across groups and across…

This document is the report of a study of the distinctiveness effect on social infraction. Distinctive characteristics are those aspects of a person that are statistically uncommon within a social or cultural context. Previous research shows that people tend to categorize and make judgments about others on the basis of their distinctive…

Conventional research strategies typically emphasize behavior-determining tendencies so strongly that the person as a whole is ignored. Research strategies for studying whole persons focus on symbolic structures, formulate specific questions in advance, study persons one at a time, use individualized measures, and regard participants as expert…

A number of psychological models may explain why people vary in their satisfaction with various life domains (e.g., family, or grades). Six of the models are: (1) positive affect (the degree to which one experiences joy or happiness in each life domain); (2) negative affect (unpleasant emotions associated with domains); (3) social comparison (how…

In analyzing various moral and legal philosophies, two perspectives emerge, absolute moral rules/higher law, and situationally-specific moral rules/legal positivism. From these two perspectives, four types of individuals emerge in accordance with their degree of adherence to ideological tenets: (1) situationists (high on idealism and relativism);…

While changes in levels of activity and in social relationships in old age have interested researchers for some time, longitudinal studies have only recently begun to yield information about changes in social relationships across time for older adults. Parents (N=74) of the 1928-1929 Guidance Study and Berkeley Growth Study children, who are now…

A new approach to assessing unexpected differential item performance (item bias or item fairness) is introduced and applied to the item responses of different subpopulations of Scholastic Aptitude Test (SAT) takers. The essential features of the standardization approach are described. The primary goal of the standardization approach is to control…

Several self-report studies of mood and activity have produced evidence of culturally biased theories which people share about the relationship between affect and behavior. In these studies, biased reporting may have been increased by taking mood and activity ratings concurrently rather than employing lagged independent ratings. To identify…

Vocal and object-directed behaviors of parents and infants were examined according to the social-construction view of development. Interactions of 66 infant-parent dyads were observed. Normative changes and stability of individual differences of joint-action variables and the relation of these variables to 30-month cognitive-development status…

Summarizes data on developmental patterns in constructive play--play in which children use play materials to make something. Reviews knowledge about developmental correlates and effects of constructive play behavior and examines methodological and theoretical issues. (NH)

The first and founding conference of the European Association for Research on Learning and Instruction was held in Belgium from June 10-13, 1985. This article concentrates on highlights that suggest intersections between three of the six conference themes: problem-solving; cognition-motivation interaction; and individual differences. Conference…

Because visual short-term memory deficits are common in children with reading problems, a series of experiments were reviewed which examined the role of phonological processes in short-term memory. Results suggest that both developmental and individual differences in verbal memory span are related to efficient phonological processes. (Author/DB)

To test hypotheses concerning interactional histories associated with variation in quality of infant-mother attachment, data were gathered during naturalistic home observations of 60 infants 1, 3, and 9 months of age. Responses were elicited on the Ainsworth and Wittig strange situations. Results concerned mothers' relatively greater influence in…