Tested 2,400 three- to five-year olds for cognitive style and observed their play behaviors. Repeated measures multivariate analysis indicated that field-independent children engaged in more play than did field-dependent children. Significant interaction was found for age, cognitive style, and play behaviors. Older field-independent children…

Examined whether young children can identify breaches of a permission rule and their sensitivity to the implications of such rules. Found that preschool children show considerable facility in reasoning about permission rules and can justify their choices. Results suggest that, when children violate a permission rule, they do so knowingly. (MOK)

This study examined structural characteristics and environmental variables in the stereotypic behaviors of eight individuals with developmental disabilities. Findings indicated that structural characteristics (percentage of time, bout length, and bout length variability) were highly correlated. Also, stereotyped behaviors were more likely to occur…

A study of 41 adults with mental retardation (11 with Prader-Willi syndrome and 30 with mental retardation due to other causes--13 overweight and 17 with normal weight) sought to determine differences in food preferences. While controls selected sweet food over larger quantities of unpreferred food, individuals with Prader-Willi syndrome selected…

A dynamic model of how animals learn to regulate their behavior under time-based reinforcement schedules is presented. It assumes serial activation of behavioral states during the inter-reinforcement interval, an associative process linking the states and operant response, and a rule mapping the states onto response rate. (SLD)

Examines the incidence of driving under the influence (DUI) one year prior to, and one year following the partial lifting of a complete Sunday sales ban on alcohol. Data did not reveal a statistically significant increase in DUIs. Results suggest that limited alcohol consumption does not increase alcohol-impaired driving. (RJM)

Explores the relationship between alcohol-induced blackouts and alcohol expectancies in 123 college students. Found significant correlations between students' alcohol expectancies, level of alcohol abuse, and blackout history. Students who experienced blackouts had higher positive alcohol expectancies than those without blackouts. Other findings…

Analyzed effects of modeling and contingent praise on infant imitation of three responses: motor-with-toy, motor-without-toy, or vocal. Found a systematic increase in the percentages of training and probe models matched by the three 12- to 14-month-olds following introduction of model-and-praise treatment conditions. Nonmatching responses did not…

Comparison of 31 elementary grade boys with learning disabilities and 52 boys with behavior disorders who either did or did not also display hyperactive behavior found significant differences between groups on the Classroom Behavior Inventory in three areas: Hostility versus Consideration, Extroversion versus Introversion, and Independence versus…

What teachers believe and how they behave is a result of socialization in the culture of teaching. If long-term school reform is a goal of staff development, then strategies and mechanisms must be developed which focus on changing the culture of teaching. (JD)

The follow-up study examined 16 schizo-affective children after a mean of 16 years. In comparison to purely schizophrenic controls, subjects showed an increased incidence of affective psychoses, suicide in the ancestry, and more pre-morbidly well-adjusted personalities. The schizo-affective psychoses had mainly an acute-recurrent character.…

Examined associations between attachment quality and children's friendships at 4 and 5 years of age as a follow-up of the sample used in an earlier study by Park and Waters (1989) of secure-secure and secure-insecure friend pairs. Found that the pattern of relations between friendship and attachment changed over time, but attachment pairing…

Assessment of 497 urban preschool children with developmental disabilities using the Vineland Adaptive Behavior Scales indicated a strong positive relationship between adaptive behavior and intelligence if measured globally. When Vineland domains were assessed separately, this relationship varied across domains and disability groups. With…

A focal-animal sampling technique was applied to measure and quantify visitor behavior at an enclosed hummingbird aviary. The amount of time visitors stayed within the aviary and how they allocated time was measured. Results can be used by exhibit designers to create and modify museum exhibits. (LZ)