The SNAP™ Under 12 Outreach Project: Effects of a Community Based Program for Children with Conduct Problems

We examined the immediate, short- and long-term effectiveness of the SNAP™ Under 12 Outreach Project (ORP)—a community-based program for children under the age of 12 at risk of having police contact. Sixteen pairs of children were matched on age, sex and severity of delinquency at admission, and randomly assigned to the ORP or to a control group which received less intensive treatment. Level of antisocial behavior was assessed pre and post intervention (immediate effects) and at three follow-up periods (up to 15 months post treatment) to investigate maintenance of possible treatment effects. A search of criminal records was also performed to assess long term effects. Results indicated that ORP children decreased significantly more than controls on the Delinquency and Aggression subscales of the Child Behavior Checklist pre- to post-intervention, and these effects were maintained over time. For statistically significant differences, effect sizes were large (.79 to 1.19). Fewer ORP children (31%) had criminal records at follow-up compared to controls (57%), although this difference was not statistically significant. Overall, the ORP appears to be an effective cognitive-behavioral program for antisocial children in the short term, with possible effects that extend into adolescence and adulthood.     

Development of adolescence‐limited,late‐onset,and persistent offenders from age 8 to age 48

This article investigates the life success at ages 32 and 48 of four categories of males: nonoffenders, adolescence‐limited offenders (convicted only at ages 10–20), late‐onset offenders (convicted only at ages 21–50), and persistent offenders (convicted at both ages 10–20 and 21–50). In the Cambridge Study in Delinquent Development, 411 South London males have been followed up from age 8 to 48 in repeated personal interviews. There was considerable continuity in offending over time. Persistent offenders had the longest criminal careers (averaging 18.4 years), and most of them had convictions for violence. Persistent offenders were leading the most unsuccessful lives at ages 32 and 48, although all categories of males became more successful with age. By age 48, the life success of adolescence‐limited offenders was similar to that of nonoffenders. The most important risk factors at ages 8–18 that predicted which offenders would persist after age 21 were heavy drinking at age 18, hyperactivity at ages 12–14, and low popularity and harsh discipline at ages 8–10. The most important risk factors that predicted which nonoffenders would onset after age 21 were poor housing and low nonverbal IQ at ages 8–10, high neuroticism at age 16, and anti‐establishment attitudes and motoring convictions at age 18. It was suggested that nervousness and neuroticism may have protected children at risk from offending in adolescence and the teenage years. Aggr. Behav. 35:150–163, 2009. © 2009 Wiley‐Liss, Inc.     

Homelessness and strategies of identity maintenance: a participant observation study

In order to investigate identity maintenance strategies used by a low status group, a covert participant observation study was conducted in a shelter for the homeless. From Social Identity Theory and previous research on the homeless, it was hypothesized that the identity maintenance strategies used would differ as a function of longevity of homelessness: the short‐term homeless (<2 years) would be less likely to identify themselves as homeless (social mobility), while the longer‐term homeless (>2 years) would identify themselves as homeless but engage in various types of social creativity to mitigate their situation. In addition to the strategies described in SIT, it was conjectured that some of the longest‐term homeless would have given up making any intergroup or other social comparisons. Of the various strategies found, some were beyond SIT. The pattern of strategy use was best interpreted mainly as a function of longevity of homelessness, but this was moderated by both experience and personality. A trajectory of change in identity strategies with longevity of homelessness was offered as a plausible frame of reference for further research. Methodological limitations, implications for Social Identity Theory and recommendations for improving the situation of the homeless were discussed. Copyright © 1999 John Wiley & Sons, Ltd.     

Children's patterns of reasoning about reading and addition concepts

Children's reasoning was examined within two educational contexts (word reading and addition) so as to understand the factors that contribute to relational reasoning in the two domains. Sixty‐seven 5‐ to 7‐year‐olds were given a series of related words to read or single‐digit addition items to solve (interspersed with unrelated items). The frequency, accuracy, and response times of children's self‐reports on the conceptually related items provided a measure of relational reasoning, while performance on the unrelated addition and reading items provided a measure of procedural skill. The results indicated that the children's ability to use conceptual relations to solve both reading and addition problems enhanced speed and accuracy levels, increased with age, and was related to procedural skill. However, regression analyses revealed that domain‐specific competencies can best explain the use of conceptual relations in both reading and addition. Moreover, a cluster analysis revealed that children differ according to the academic domain in which they first apply conceptual relations and these differences are related to individual variation in their procedural skills within these particular domains. These results highlight the developmental significance of relational reasoning in the context of reading and addition and underscore the importance of concept‐procedure links in explaining children's literacy and arithmetical development.     

Parameter identification in multinomial processing tree models

Multinomial processing tree models form a popular class of statistical models for categorical data that have applications in various areas of psychological research. As in all statistical models, establishing which parameters are identified is necessary for model inference and selection on the basis of the likelihood function, and for the interpretation of the results. The required calculations to establish global identification can become intractable in complex models. We show how to establish local identification in multinomial processing tree models, based on formal methods independently proposed by Catchpole and Morgan (1997) and by Bekker, Merckens, and Wansbeek (1994). This approach is illustrated with multinomial processing tree models for the source-monitoring paradigm in memory research.     

The effect of viewing fitness imagery on body dissatisfaction: sex and physical activity differences

Exposure to cultural bodily ideals featuring thinness and muscularity can have deleterious effects on body satisfaction. The current study explores the effect of exposure to such imagery on body dissatisfaction and the influence of internalisation of cultural and athletic ideals. 188 (97 male) adults (18–25yrs; M = 20.97) were grouped according to a 2 × 2 × 2 mixed between-within subjects design (male/female; high/low physical activity; intervention/control). Participants were exposed to images of idealised physiques or neutral images. Internalisation-general, sex, physical activity levels, and Body Mass Index were associated with baseline levels of body dissatisfaction. Internalisation of cultural ideals appears to be an important factor for the prediction of body dissatisfaction. Exposure to idealised images resulted in increases in body dissatisfaction across all groups compared to controls. Neither sex nor physical activity levels buffer young adults from the negative effects of viewing images featuring idealised bodies.