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This paper uses time series methods to test the relationship between civic affairs content and audience share for the ABC, CBS, and NBC evening news in the mid-1990s. Because these programs competed in the same market, but varied the amount of their civic affairs coverage, they present an excellent opportunity to analyze this relationship. The study uses hand-coded news abstracts and O.J. Simpson murder trial coverage as separate measures of news content. The study finds that lower levels of civic affairs content and higher levels of O.J. news are associated with greater audience share. 相似文献
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Patrick H. Tolan David B. Henry Michael S. Schoeny Peter Lovegrove Emily Nichols 《Journal of Experimental Criminology》2014,10(2):179-206
Objectives
To conduct a meta-analytic review of selective and indicated mentoring interventions for effects for youth at risk on delinquency and key associated outcomes (aggression, drug use, academic functioning). We also undertook the first systematic evaluation of intervention implementation features and organization and tested for effects of theorized key processes of mentor program effects.Methods
Campbell Collaboration review inclusion criteria and procedures were used to search and evaluate the literature. Criteria included a sample defined as at risk for delinquency due to individual behavior such as aggression or conduct problems or environmental characteristics such as residence in a high-crime community. Studies were required to be random assignment or strong quasi-experimental design. Of 163 identified studies published from 1970–2011, 46 met criteria for inclusion.Results
Mean effects sizes were significant and positive for each outcome category (ranging from d?=?0.11 for academic achievement to d?=?0.29 for aggression). Heterogeneity in effect sizes was noted for all four outcomes. Stronger effects resulted when mentor motivation was professional development but not by other implementation features. Significant improvements in effects were found when advocacy and emotional support mentoring processes were emphasized.Conclusions
This popular approach has significant impact on delinquency and associated outcomes for youth at risk for delinquency. While evidencing some features may relate to effects, the body of literature is remarkably lacking in details about specific program features and procedures. This persistent state of limited reporting seriously impedes understanding about how mentoring is beneficial and ability to maximize its utility. 相似文献3.
This study employs latent class analysis to construct bullying involvement typologies among 3114 students (48% male, 58% White) in 40 middle schools across the U.S. Four classes were constructed: victims (15%); bullies (13%); bully-victims (13%); and noninvolved (59%). Respondents who were male and participated in fewer conventional activities were more likely to be members of the victims class. Students who were African-American and reported being less successful at school had a higher likelihood of membership in the bullies class. Bully-victims shared characteristics with bullies and victims: Students with more feelings of anger toward others and a higher tendency toward sensation-seeking had a higher likelihood of membership in the bullies and bully-victims classes, whereas lower levels of social inclusion was associated with membership in the victims and bully-victims classes. 相似文献
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Daily per capita calorie intake in Bangladesh averaged almost 2,100 (kilo)calories in the 1960s but fell to 1,840 in 1972 following the war of independence in 1971, and only by 1987 did it reach 2,000 again. This article examines the long-run relationship between per capita income, food prices and per capita calorie intake using aggregate data for Bangladesh for 1962–97 and the recent cointegration procedure of Johansen et al., which permits structural breaks. Results show that a long-run relationship exists and that the war reduced average calorie intake permanently by 10 per cent. Impulse responses show that income Granger-causes calorie intake but not vice versa. 相似文献
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Kimberly L. Henry Peter J. Lovegrove Michael F. Steger Peter Y. Chen Konstantin P. Cigularov Rocco G. Tomazic 《Journal of youth and adolescence》2014,43(2):221-232
Adolescent bullying is a common problem in schools across America. The consequences of bullying are significant, and can include severe psychological trauma and suicide. A better understanding of the mechanisms that link bullying and suicidal ideation is needed in order to develop effective prevention and intervention initiatives. Meaning in life is a potential mechanism that has not been studied in this context. It was hypothesized that meaning in life could serve as both a mediator and a moderator of the relationship between bullying victimization and suicidal ideation. As a mediator, meaning in life is considered to explain why bullying victimization leads to suicidal ideation. As a moderator, meaning in life is considered to buffer the ill effect of bullying victimization on suicidal ideation. Data collected from an ethnically diverse sample of 2,936 (50 % female), 6th–12th grade students from one urban school district in the Northeastern US were used to examine the hypotheses. The model for girls was consistent with mediation (i.e., meaning in life may explain how victimization leads to suicidal ideation). The model for boys was consistent with moderation (i.e., the ill effect of victimization on suicidal ideation was attenuated as meaning in life increased). Implications for prevention are discussed. 相似文献
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Terence P. Thornberry Adrienne Freeman-Gallant Peter J. Lovegrove 《Journal of youth and adolescence》2009,38(3):312-322
We examine the extent to which parental antisocial behavior is related to child antisocial behavior and, if it is, the extent
to which the effect is mediated by parental stressors and by parenting behaviors. In particular, we examine two sources of
stress–depressive symptoms and exposure to negative life events. The study is based on data from the Rochester Intergenerational
Study, a prospective multi-generation panel study. The parent sample is 73% male and 27% female and predominantly African
American (69%); the child sample consists of each parent’s oldest biological child. We find significant levels of intergenerational
continuity in antisocial behavior for mothers and for fathers who live with or supervise their child, but not for fathers
who have low levels of contact with their child. Results of structural equation models of mediating pathways are similar for
mothers and for supervisory fathers. Of the two stressors we examine, depressive symptoms appears to be the more consistent
mediator. It, both directly and indirectly via its impact on parenting behaviors, influences the child’s early onset of antisocial
behavior. The results imply that childhood antisocial behavior has deep roots, extending back to the parent’s adolescent development.
相似文献
Terence P. ThornberryEmail: |
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