The present study examined whether in humans the generalized matching law described the relation between relative responding and relative drug intake by humans under concurrent variable interval variable interval (conc VI VI) schedules of drug reinforcement. Methadone-maintained patients, stabilized on 80 mg per day of methadone, were recruited…

This article explores young women's strategies for seeking personal power and resisting gender-based stereotypes in a wealthy, suburban, White community and a working-class, urban, community of color. Semi-structured interviews with 27 young women were used to examine contextual variations in these gender identity negotiation processes. Both…

This paper draws together the as yet nascent literature on the development of failure-avoidant patterns of behaviour. These are behaviours intended to minimise risk to self-worth in the event of failure, thereby avoiding the negative impact of poor performance in terms of damage to self-worth. Self-worth protection, self-handicapping, impostor…

Objective: To identify youth assets associated with reduced aggressive and delinquent behavior of youth residing in 1-parent households but not of youth residing in 2-parent households. Methods: Data were collected from inner-city youth and their parents (N = 1277 youth-parent pairs) using in-home, in-person interviews. Logistic regression…

This article reports the results of a 2-year study examining the effects of subject matter, course structure, and participant behaviors on students' perceived learning and satisfaction with delivery medium in Web-based courses of an MBA program in the midwestern United States. Using finance as the referent discipline, we found statistically…

Developmental Science aims to generate a new body of knowledge that encompasses and integrates findings from various well-defined academic disciplines concerned with developmental processes of human and non-human organisms. Although all development related research traditions surely have their own distinct history, certain theoretical ideas…

Findings from two studies of 42 children with profound developmental delays (26 males and 15 females) using systematic and intense response-contingent learning opportunities interventions are reported. Response-contingent learning games were used to promote the participants' use of behavior that either produced environmental consequences or…

Using a sample of adjudicated French Canadian males from the Montreal Two Samples Longitudinal Study, this article investigates individual and social characteristics associated with differential cost avoidance. The main objective of this study is to determine whether such traits are randomly distributed across differential degrees of cost…

On-the-job training (OJT) is the most frequently used training method in industry. This OJT is mostly unstructured. While off-job-site training (OJST) should prepare for or supplement OJT, coordination between OJT and OJST is often poor. Advantages of OJT include its low cost, realistic nature, and motivating force. However, it is usually…

The booklet, part of a series which examines actual and potential contributions of psychology toward solving problems of the world's schools, contains articles written by school psychologists from the United States, Europe, Latin America, Canada, Australia, New Zealand, and Taiwan. The document was compiled in response to a need for international…

Presented is an annotated bibliography with approximately 250 entries relating to the severely and profoundly retarded. Citations are listed alphabetically by author under the following categories: assessments, measurements, evaluations; associations; attending behavior; behavior modification; books; classical conditioning; cognitive development;…

This occasional paper is intended to disseminate information from the project, Monitoring the Future. Each year since 1975, about 17,000 seniors have participated in the survey, which is conducted in some 130 high schools nationwide. In addition, subsamples of seniors from previously participating classes receive follow-up questionnaires by mail…

The growing evidence of the link between diet and health has not been lost on consumers in the United States. As awareness of the diet-health link has increased through nutrition education, consumers have changed their diets. Although there is still considerable room for improvement in meeting Federal food-guidance recommendations, nutrition…

This study investigated the extent to which data collected on play behavior differ when two different data collection methods, observation alone and observation plus interview, were used. A secondary objective was to compare data collected using both methods in an indoor and outdoor play environment. The social and cognitive play behavior for a…

Data from campus crime reports and security logs help identify the perpetrators and likely victims of crime on college campuses. The historically black college or university campus is not exempt from physical and verbal acts of violence, and every area of the campus is vulnerable. Although the academy has no duty to protect the community from…