Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal.

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

Title: Internal motivation of adolescents in sport. Objectives:Check to compare emotionally and motivational processes in adolescents using questionnaires. Focus on boys and girl agend 16-18 years, specifically for secondary school students. Statistically processed and then Compaq the measured data, between the sexes and between schools. Then sorts the results in clear graphs and images. Methods:Students'responses analyzed using questionnaires. School choice was made in secondary schools in Liberec and Prague. Results:The questionnaires is reliable. Internal motivation does not affect the propensity to exercise. Keywords:Performance, sport, motivation, students, questionnaire. Powered by TCPDF (www.tcpdf.org)

Research on the various subtypes of aggression has documented differences in the experience of anger and the expression of angry aggression. Mixed proactive and reactive aggressive individuals exhibit reactive aggression but, unlike reactive aggressive individuals, fail to exhibit angry expressions or physiological arousal. Similar to the proactive group, individuals with psychopathic traits have been found to exhibit emotional underreactivity, and physiological underarousal, while still exhibiting reactive aggression. The present study examined 85 boys (ages 13 to 18) from a detention center. Three groups of aggressive boys were identified via cluster analysis based on the self-report of types of aggressive behavior: a primarily reactive aggressive group (n=29), a mixed reactive and proactive group (n=16), and a low aggressive group (n=40). The three groups were compared on aggressive responding (during a computerized provocation task with low and high provocation trials), on callous and unemotional traits (CU) and on psychophysiological indices of emotional reactivity. All aggressive groups showed greater aggressive responding to high provocation than to low provocation. The mixed aggressive group showed high aggressive responding across all provocation levels, including the no provocation condition, while the reactive aggressive group only showed high levels similar to the mixed aggressive group during low provocation. Unexpectedly, the reactive and mixed aggressive groups reported higher levels of CU traits than the other group. Although the groups did not differ on psychophysiological activity/reactivity, higher levels of CU traits were related to lower skin conductance responses to provocation. Thus, the contribution of high and low CU traits in the three groups to psychophysiological activity/reactivity was examined. Interestingly, the low and mixed aggressive groups who were high on CU traits had lower sympathetic arousal (indexed by skin conductance) and lower sympathetic reactivity to provocation. Thus, the mixed aggressive group showed a general disconnect between their angry aggression (on the provocation task) and their sympathetic reactivity to provocation. However, this was true only if they also showed high rates of CU traits. These results suggest that interventions targeted toward individuals who exhibit particular subtypes of aggression may be more beneficial if the presence of CU traits is also considered.

The purpose of this study was to examine the potential moderating effects of CU traits on the relationship between self-reported social intelligence and aggression in a community sample of boys and girls (ages 14-18). Four subtypes of aggression were measured: reactive overt, reactive relational, proactive overt, and proactive relational. Results indicated that there was not a significant association between social intelligence and any of the aggression subtypes. Neither CU traits nor empathy moderated the association between social intelligence and any of the four subtypes of aggression. Supplementary analyses were conducted to investigate whether level and type of aggression was related to levels of social intelligence and CU traits (or an interaction between the two). Results indicated that at high levels of CU traits, youth exhibited significantly higher levels of proactive overt and reactive overt aggression (t(113.06) than at low levels of CU traits.

The purpose of the current study is to examine the association between self-esteem and the forms and functions of aggression. Research supports the existence of four aggressive subtypes (i.e., reactive overt, reactive relational, proactive overt, and proactive relational), and past research has found associations between aggression and self-esteem. However, past studies have not examined the relationships between all four subtypes of aggression and self-esteem together. 141 adolescents were recruited from the community with a mean age of 13.55. The sampled group was composed of 51% females and 52% Caucasians. Participants completed self-report questionnaires on self-esteem and aggression. The results provide support for an association between proactive aggression and self-esteem. Additionally, overt aggression was more associated with self-esteem than relational aggression. These findings will help fill the gap in literature on the forms and functions of aggression and will further define the relationship between aggression and self-esteem.

Magister Artium (Child and Family Studies) - MA(CFS) / Adolescence can be understood as the transitional period between childhood and adulthood. During adolescence individuals tend to experiment and discover who they are in terms of their unique social identity and are more susceptible to health risk behaviour engagement. Health risk behaviour place individuals at risk for numerous health complications. The most common forms of health risk behaviours are smoking, drinking, illicit drug use, risky sexual behaviour, violence and physical inactivity. Life skills development has been proven to reduce many health risk behaviours in adolescents. The Life Effectiveness Questionnaire (LEQ) is a psychometric instrument which has been developed to measure life skills. Social Cognitive Theory posits that people are not driven by inner forces nor are they controlled by external stimuli, rather there is a reciprocal triadic relationship where the environment, cognition and personal factors influences learning through observation. When in the presence of their peers, adolescents are more likely to engage in health risk behaviour because of peer influence and immediate rewards. This study aimed to study the effects of the LEQs life skills domains as it relates to the engagement in health risk behaviour among Grade 8 learners in a selected high school in Paarl. This study used a quantitative methodology with a cross-sectional design employing written surveys. The sample consisted of 104 Grade 8 learners. The data was collected using self-reported questionnaires. One was the LEQ (Appendix 5 and 6) which measures life skills and the other was the Youth Risk Behaviour Surveillance Survey (YRBSS) (Appendix 7) which measures the prevalence of health risk behaviour engagement. The data was analysed using the Statistical Package for Social Sciences V24 (SPSS). The results suggested that there is still a high prevalence of health risk behaviour engagement among Grade 8 learners with increases evident in some of the health risk behaviours.

Magister Public Health - MPH / Adolescents living with HIV (ALHIV) are notably underserved by national HIV programmes globally due to their unique needs. Of particular concern is limited access to and availability of adolescent-friendly ART services, which contributes to poor ART adherence and retention in care in many sub-Saharan African countries. Poor adherence in adolescents has been associated with medicine side effects, pill fatigue, non-disclosure of status to the child, inadequate information on HIV, caregiver-child communication, caregiver’s health beliefs and stigma, and lack of knowledge on the rationale of taking medicines. Several interventions have been developed to improve ART adherence and retention in care amongst ALHIV through peer groups and psychosocial support. The Teen Club intervention was introduced in 2010 at Intermediate Hospital Katutura Paediatric ART clinic in Windhoek to improve ART adherence and retention in care amongst ALHIV by providing psychosocial support in a group environment. However, to date no formal evaluation of the effectiveness of the Teen Club intervention in Namibia has been conducted. The aim of the study was to compare the effects of the Teen Club intervention against standard care on treatment outcomes for ART (i.e. adherence, retention in care and viral suppression) in adolescents at Intermediate Hospital Katutura Paediatric ART clinic in Namibia. Methods: A retrospective cohort analysis of HIV positive adolescents aged 10-19 years, who were accessing ART between 1 July 2015 and 30 June 2017 was conducted. Patient data was extracted from the electronic Patient Monitoring System (ePMS), individual Patient Care Booklets and the teen club attendance register. Adherence to ART was measured through pill counts; and retention by kept clinic visits. Viral load results were assessed to measure levels of viral suppression. Adolescents with viral loads ≥ 1000 copies/ml were classified as not virally suppressed whilst those with viral loads <1000 are virally suppressed (with those <40 fully suppressed). Results: The total sample was 385 participants; with 78 of them in the Teen Club (exposed) and 307 adolescents in standard care (unexposed).

Master of Public Health - MPH / Background: Globally, it is estimated that about 1.8 million adolescents (aged 10–19 years) were living with HIV in 2015. In Kenya an estimated 133,455 adolescents were living with HIV in 2015, of which 75% (105,679) were in need of antiretroviral therapy (ART). Among adolescents on ART in 2016, 63% reported viral suppression; which is far below the UNAIDS targets of 90%. Viral suppression (having less than 1000 copies of viral RNA/ml of blood) is a key indicator of HIV treatment success, and is associated with better quality of life and reductions in HIV incidence at a population level. Homabay County recorded the highest HIV prevalence (26%) and the highest number of adolescents living with HIV in Kenya (15,323) in 2015. By the end of June 2017 5,709 adolescents were initiated on ART in Homabay County. Despite the successes in initiating HIV positive adolescents on ART, little is known about the factors that are associated with viral suppression. The current study investigated the factors associated with viral suppression among adolescents initiated on ART before November 30, 2017 in Homabay County, Kenya. Methods: A descriptive cross-sectional study was conducted among 925 adolescents registered on ART for at least 6 months and with at least one documented viral load in the last 12 months, in six health facilities in Homabay County. Data was extracted from the electronic medical records and exported into an excel spreadsheet. Bivariate and multivariate logistic regression analyses were conducted to identify factors associated to viral suppression using Stata 12.0.

Faculty of Arts School of Human and Community Development 0000613a Tel: 011 849 3853 / South African Speech-Language Pathologists are assessing and treating many adolescents with varying speech and language difficulties. This task is complicated by the fact that it is currently largely unknown what the language abilities of mainstream adolescents are. Some research has suggested declining language abilities, as well as significant effects of grade, gender and language background on cognitive academic language skills. As individuals grow older, the demands of the classroom environment become greater, forcing adolescents to use complex language skills in order to learn. This research paper aimed to assess the complex sentence comprehension abilities of a sample of South African adolescents, through the use of the Grammar/Listening subtest of the Test of Adolescent Language, developed by Hammill, Brown, Larsen, and Wiederholt (1980). Additionally, the effects of grade, gender, language, time spent reading for school and recreationally each week, number of television programmes watched per week, length of time spent playing computer or video games per day, preferred learning styles (group/alone and auditory/visual/both), most recent English and school report marks, and use of cellular telephones, were used to determine related factors and educational variables which might be linked to each other. Additionally, a working memory measure was included, in order to ascertain that this factor was not having a negative effect upon the comprehension scores. It was found that gender was an over-riding factor throughout the study. Females tended to do better on the complex sentence comprehension test, and also spent more time reading for school each week, obtained better English and school report marks, preferred to learn alone, and sent more sms’s. Males were only inclined to play more computer or video games per week. In opposition to the initial hypothesis that these learners would perform poorly on the TOAL subtest, it was found that participants generally performed within the average limits of the test. Correlations, one-way ANOVA’s, chi squared analyses and t-tests were performed for the secondary aims, in order to determine any relationships between the variables. Overall, though, gender was the key variable in the study, which is in line with other literature in the field. Home language and educational level had minimal effects. Further research has been recommended.