Examines the effects of cage size on stereotyped and normal locomotion and on other abnormal behaviors in singly caged animals, whether observed abnormal behaviors tend to co-occur, and if the development of an abnormal behavior repertoire leads to reduction in the number of normal behavior categories. (Author/RK)

The current and lifetime prevalence of heterosexual cohabitation are examined for 2,510 young men. It would appear that neither cohabitation nor marriage had reached a peak in terms of prevalence among the young men born in the years 1944 through 1954. (Author)

As adoptions have increased, they have become less concentrated among women unable to bear children, although these women are still more likely to adopt than are fertile women. About 4 percent of American women have adopted a child by the time they are 45 years old. (Author)

Presents three experiments that explore whether inescapable shock of long duration and moderate intensity (LoShk) produces an avoidance-escape deficit (called an interference effect) by causing animals to learn to respond less actively or by causing them to learn to be "helpless". (Editor)

The Vane Kindergarten Test (VKT) is judged to have limited usefulness in early detection of learning handicaps for two reasons: (a) Its reliability is too low to allow discrimination between individuals, and (b) The ability of the VKT to predict problem behaviors is quite limited. (Author)

The Presuicidal Syndrome relates to that specific psychic state of mind that leads to suicidal acts. It is proposed that the Presuicidal Syndrome provides a basis for better judgment of the danger of suicide and makes more focused suicide prevention possible. (Author)

A longitudinal study was conducted to determine whether students' life history or biographical data could be used to predict their experiences in college. Significant relationships were found between the students' life history data and their subsequent college experiences. (Author)

It was hypothesized that a pathological liar might be characterized by a construct system atypically loose over a wide range of conventional, socially relevant constructs. Evidence consistent with this hypothesis was obtained from the Thought Disorder Grid (TDG) and by a marked response bias on the Eysenck Personality Inventory (EPI). (Author)

Suggests that "mass effect" arises when one's channels of communication are inadequate for the number of people one must deal with. Defines current "masses" as intricate systems of group-sets evolving from an effort to avoid "mass effect". (MH)

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)