The present study examined the joint development of substance use and externalizing problems in early and middle adolescence. First, it was tested whether the relevant groups found in previous studies i.e., those with an early onset, a late onset, and no onset or low levels of risk behavior could be identified, while using a developmental model of…

Although concerns about peer contagion are often cited in critiques of group treatments for troubled youths, few studies have examined the effects of exposure to deviant peers in residential group care settings. This study used administrative data of youth served at Boys Town, a nationally-known group care provider. Using latent class growth…

D. Campbell and D. Fiske's multitrait-multimethod matrix was applied to data from two independent social learning measures designed to evaluate procedures used to aid 47 aggressive children (5-15 years old). (Author/CL)

When hyperactive boys were taking placebos, they were involved in more negative incidents, their handwriting was poorer, and their names were called more frequently than when the boys were taking methylphenidate. (Author)

The behavioral symptoms of children with speech and language disorders (mean age approximately 6 years) were studied with a teacher and a parent questionnaire. A factor analysis produced similar factors for both questionnaires: Hyperactivity-Conduct, Affect, and Language. An Asocial factor was also found with the teacher questionnaire. (Author)

The clinical implication of the study is that the beneficial effects of stimulant drug intervention occur within the first months after initiation of therapy. Long-term treatment does not appear to be of value in producing better outcome. (Author)

A study involving 24 5-year-old children and their mothers was conducted to examine the relationship between children's oppositional behavior and the following two variables: number of commands issued and time from command presentation. (Author/SBH)

Changes with aging and stability of dimensions of behavioral disturbance were determined for 732 children and adolescents who constituted the sample reassessed after 5 years of an original cross-sectional sample of Manhattan youth 6 to 18 years old. (Author/SBH)

Examined were consistencies over time of maternal reports, observations of nursery and elementary school behavior, and teacher ratings of problems for 20 hyperactive Ss and 21 controls (2 year followup) and 15 hyperactive Ss and 16 controls (3 year followup). (Author/CL)