Background: Sufficient physical activity (PA) is important to reduce the risk of men developing chronic diseases and to improve mental health. The effectiveness of PA programmes can vary, however, among men. Individual and socio-psychological characteristics may affect the level of men's PA before starting a behaviour change programme as well as…

Factors that affect physical activity (PA) behavior change are well established. Behavioral intention is a strong psychological predictor of behavior; however, there is less research on the factors that affect the "intention" to increase PA participation specifically, especially among adults in mid and later life who are inactive. Using…

This study explores the developmental change of mother-child interactions in order to investigate which aspects of maternal behavior affect children's speech production. To this end, the interactions between 79 German-speaking mothers and their two- or five-year-old children were observed at two time points (12 months apart) and in two interactive…

Little is known about outcomes for individuals with autism spectrum disorders (ASD) into adulthood. Several characteristics of individuals with ASD predict long-term outcomes, and the family environment may also play a role. The present study uses a prospective, longitudinal design to describe and predict trajectories of autism symptoms and…

Objective: Skin cancer incidence continues to rise as a tanned appearance remains desirable, particularly among young women. Fake tanning provides a tanned appearance without exposure to ultraviolet radiation. In order to advance our understanding of the factors that contribute to long-term behavior change, this study explores determinants…

Developmental neuroscience models suggest that changes in responsiveness to incentives contribute to increases in adolescent risk behavior, including substance use. Trajectories of sensitivity to reward (SR) and sensitivity to punishment (SP) were examined and tested as predictors of escalation of early substance use in a community sample of…

In this longitudinal study, we tested whether the association between oppositional defiance to parental authority (i.e., adolescents' tendency to bluntly reject parental rules) and autonomy would depend upon the specific conceptualization of autonomy. Whereas oppositional defiance would yield more interpersonal distance from parents, because…

Research Findings: Studies of children's prosocial behavior typically focus on prosocial acts with a specific partner (e.g., a friend, peer, or sibling), and comparisons of prosociality in different contexts are rare. To address this gap, the current study examined predictive links among children's spontaneous sharing (a common and important form…

Background: There is an increasing need to identify effective mental health treatment practices for children and adolescents in community-based settings, due to current mixed findings of existing interventions. This study looked at adventure therapy (AT) as a viable option to meet this need. Objective: Using a sample of 1,135 youth from a…

Objectives: The current study tested opposing predictions stemming from the failure and acting out theories of depression-delinquency covariation. Method: Participants included a nationwide longitudinal sample of adolescents (N = 3,604) ages 12 to 17. Competing models were tested with cohort-sequential latent growth curve modeling to determine…

Establishing college-degree programs for prison inmates is an evidence-based effective instructional strategy in reducing recidivism. Evaluating academic arenas as a resource to improve behavior and levels of functioning within correctional facilities is a necessary component of inmate academic programs. The purpose of this quantitative,…

The study reported here examined 367 adolescent 4-H participants in terms of demographic, psychological, behavioral, and relational characteristics, as well as their perceptions and experiences in 4-H. Overall, participants scored high on all outcome variables except having a diverse population in their club. Older participants were more…

Distressed couples were assigned to behavioral marital therapy, communication therapy, or a wait-list. Treated couples demonstrated more change than controls in marital problems and general communication patterns, but not in feelings toward spouse or communication during conflict resolution discussions. No overall differences were reported between…

Studied neuropsychological recovery following alcohol abuse as a function of age. Alcoholics (N=31) were administered a repeatable neuropsychological test battery for the three months immediately following cessation of drinking. Results suggest that beyond age 40, humans increase in vulnerability to the toxic effects of alcohol. (JAC)

Objective: To assess young women's breast health knowledge and explore its relation to the use of screening mammography. Methods: A convenience sample of 180 women aged 25-45 residing in Toronto, Canada, with no history of breast cancer and mammography received an information brochure and four questionnaires which assessed their knowledge of…