[Psychological consequences of severe overweight in teenagers]


Bullying behaviours among students in Pavia, Italy: prevalence and association with stress and cannabis use



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Bullying behaviours among students in Pavia, Italy: prevalence and association with stress and cannabis use.


Martinelli VBrondino NRossi SPanigati RMagnani RCappucciati MVecchia LTinelli SEmanuele EPoliti P.

Source


Department of Health Sciences, Section of Psychiatry, University of Pavia, Pavia, Italy. valentina.martinelli@unipv.it

Abstract

BACKGROUND:


This study examined the prevalence of students' reported experiences of bullying and victimization in primary and secondary schools and their association with levels of perceived stress and cannabis use.

METHODS:


We consecutively enrolled 407 students attending three secondary schools in Pavia (Italy). Bullying and victimization were measured using the retrospective bullying questionnaire (RQB). The 10-item perceived stress scale (PSS-10) was used to assess the degree to which situations in life were perceived as stressful. Data on demographic characteristics and cannabis use in the previous 6 months were also collected.

RESULTS:


There were 328 victims (80.6%) and 221 bullies (52.1%). The results of the stepwise regression analysis with bullying as the dependent variable were significant with either male sex (R2 = 0.030, p = 0.024) or PSS-10 scores (R2 0.056, p = 0.036) in the model. With victimization as the dependent variable, only the PSS-10 scores were retained in the model as an independent predictor variable (R2 = 0.048, p<0.001).

CONCLUSIONS:


The results from this study indicate that the level of perceived stress has an independent association with both bullying and victimization. Further studies are needed to clarify the psychobiological links between stress, cannabis use and bullying behaviours.

Br J Educ Psychol. 2011 Dec;81(Pt 4):654-66. doi: 10.1348/2044-8279.002003. Epub 2010 Nov 17.

Prevention of school bullying: the important role of autonomy-supportive teaching and internalization of pro-social values.


Roth GKanat-Maymon YBibi U.

Source


Ben-Gurion University of the Negev, Israel Sapir College, Israel. roth@bgu.ac.il

Abstract

BACKGROUND:


This study examined students' perceptions of autonomy-supportive teaching (AST) and its relations to internalization of pro-social values and bullying in class.

AIMS:


We hypothesized that: (1) teachers' AST, which involves provision of rationale and taking the student's perspective, would relate positively to students' identified internalization of considerateness towards classmates, and would relate negatively to external regulation (considerateness to obtain rewards or avoid punishments); (2) students' identified regulation would relate negatively to self-reported bullying in class, whereas external regulation would relate positively to bullying; and (3) the relation between teachers' AST and student bullying would be mediated by students' identification with the value of considerateness towards others.

SAMPLE:


The sample consisted of 725 junior high school students (50% females) in Grades 7 and 8 from 27 classes in four schools serving students from lower-middle to middle-class socioeconomic backgrounds.

METHOD:


  The participants completed questionnaires assessing the variables of interest.

RESULTS:


Correlational analysis supported the hypotheses. Moreover, mediational analyses using hierarchical linear modelling (HLM) demonstrated that identified regulation mediates the negative relation between AST and self-reported bullying in class. The mediational hypothesis was supported at the between-class level and at the within-class level.

CONCLUSIONS:


  The findings suggest that school policy aimed at bullying reduction should go beyond external control that involves external rewards and sanctions and should help teachers acquire autonomy-supportive practices focusing on students' meaningful internalization.

Biol Psychiatry. 2011 Dec 1;70(11):1016-23. doi: 10.1016/j.biopsych.2011.06.017. Epub 2011 Aug 12.

Blunted cortisol responses to stress signal social and behavioral problems among maltreated/bullied 12-year-old children.


Ouellet-Morin IOdgers CLDanese ABowes LShakoor SPapadopoulos ASCaspi AMoffitt TEArseneault L.

Source


Medical Research Council Social, Genetic, and Developmental Psychiatry Centre, Institute of Psychiatry, King's College London, London, United Kingdom.

Abstract

BACKGROUND:


Evidence from animal and human studies suggests that early-life stress such as physical maltreatment has long-lasting effects on the hypothalamic-pituitary-adrenal (HPA) axis and is associated with blunted HPA axis reactivity in adulthood. Few studies have investigated whether blunted HPA axis reactivity observed in children exposed to early-life stress signals social, emotional, and behavioral problems.

METHODS:


Participants were 190 12-year-old children (50.5% males) recruited from the Environmental Risk Longitudinal Twin Study, a nationally representative 1994 to 1995 cohort of families with twins. Cortisol responses to psychosocial stress were measured in maltreated/bullied (n = 64) and comparison children (n = 126). We ascertained maltreatment and bullying victimization using mothers' reports and assessed children's social, emotional, and behavioral problems at ages 5 and 12 using mothers' and teachers' reports.

RESULTS:


Piecewise multilevel growth curve analyses indicated that maltreated/bullied and comparison children showed distinct cortisol responses to stress. Specifically, maltreated/bullied children had lower cortisol responses than comparison children who exhibited a significant increase. Lower cortisol responses were, in turn, associated with more social and behavioral problems among maltreated/bullied children.

CONCLUSIONS:


These findings provide support for the influence of childhood harm on blunted HPA axis reactivity and its potential impact on children's functioning. Our findings emphasize the need to integrate stress biomarkers in guiding prevention efforts for young victims.

Clin Psychol Psychother. 2011 Dec 6. doi: 10.1002/cpp.800. [Epub ahead of print]


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