This study examines the link between the individual and social network, what social forces and social mechanisms involved in the interaction between individuals and groups and how we can explain and consider this relationship with the aim of understanding this connection. Through qualitative interviews, based on interviews of six active members in the organization Young KRIS (Young Criminal’s Return in the Society) examines the active social processes that the young members undergo, and motivates those who have been outside the expected conformed and regular society, to be included in the regular community and how this can be explained. The study shows that the organization through high availability, openness, knowledge of the needs of young people, good treatment, range of meaningful activities, has created a great venue for the young to develop and thus regain their place in the society. / Denna studie undersöker kopplingen mellan individ och sociala nätverk, det vill säga vilka sociala krafter och sociala mekanismer är verksamma i mötet mellan individen och gruppen, och hur man kan förklara och se på denna relation med målet att förstå denna koppling. Genom den kvalitativa metoden, baserad på intervjuer av sex medlemmar inom organisationen Unga KRIS, undersöker vi de verksamma sociala processer unga medlemmar genomgår och som motiverar dem som har befunnit sig utanför det förväntade, konforma och reguljära samhället, att komma att inkluderas i det reguljära samhället och hur detta kan förklaras. Studien visar att organisationen genom hög tillgänglighet, öppenhet, kunskap om ungdomarnas behov, gott bemötande och utbud av meningsfulla aktiviteter, har skapat en trygg arena för att unga medlemmarna ska kunna utvecklas och därmed återfinna sin plats i samhället.

對偏差行為的解釋有多種理論，不過以後天的角度詮釋偏差行為，則社會控制理論、自我控制理論是最有力的解釋理論。本研究亦欲圖驗證此兩種理論在多變量潛在成長模型的效用。因此，研究者採用臺灣教育長期追蹤資料庫之資料，以自我控制信念、親子關係、同儕關係、學校依附感、教育抱負、學業成就預測偏差行為之變化。此外，並探究性別對潛在成長模型之影響。茲將研究成果陳述如下。 1、偏差行為隨著年級逐漸增加，日益增加，變異數亦逐漸擴大。 2、整體多變量潛在成長模型中，整體模式適配度良好。 3、自變項對偏差行為截距、斜率解釋量分別為.19、.32，顯示模式的解釋量仍有改善空間，其中對截距之預測達顯著者，分別為同儕關係截距、學校依附感截距、學業成就截距、親子關係截距。對斜率之預測力達顯著者，分別為學校依附感斜率、學校依附感截距、同儕關係斜率、同儕關係截距、教育抱負截距。 4、運用多群組分析，發現男女生並無測量不變性。 5、性別對偏差行為有重要影響。 6、預測女生的斜率主要考量其學校依附感和同儕關係，但預測男生偏差行為的斜率除了與學校、同儕的關係外，還要考量其教育抱負。 最後，根據上述的結論，研究者分別提出實務、研究方法、未來偏差行為研究之建議，以作為參考。 / The cause of deviation behavior is explained by many theories. However, social control theory and self control theory are the most famous and important theories. Research would like to confirm the theories which are applied in multivariable latent growth curve model. Therefore, TEPS data are analyzed to investigate the model, and the results are as follows: (1)Deviation behavior gradually increases with time and variety of it also rises. (2)The fit of model is good. (3)The intercept is explained 19% by independent variables and the slope is explained 32%. In addition, it is significant for the intercept of the relation of peer group, attachment feeling of school, parental relation and academic achievement in the regression which is employed to anticipate the intercept. It is significant that the intercept of the relation of peer group, attachment feeling of school, and educational ambition and the slope of peer group, and attachment feeling of school can anticipate slope of deviation behavior effectively. (4)Employing multi-group analysis, there exist gender differences in the model. (5)Sex has influence on deviation behavior. (6)For girls, the slope of deviation behavior is anticipated by social relations, but for boys, besides the peer relationship, it is also included the educational ambition. According the results, some suggestions are proposed for future researches and the administration authority.

Youth crime is a continuously growing social problem, where professionals face the complexity of the phenomenon. To manage and prevent youth crime, it is essential to implement measures and preventive interventions where field workers play a crucial role. Therefore, it is interesting to examine how field workers experience and actively implement crime prevention measures for children and youth in Sweden. This is a qualitative study based on two semi-structured group interviews with field workers. The analysis of the empirical material was conducted using a qualitative methodology, previous research, and two selected theories relevant to the study's purpose. The results of the analysis generated various themes describing the field workers' experiences and insights.  The results section of the study is divided into different parts related to the three research questions we aim to investigate. Additionally, the results section outlines the difficulties field workers face in their professional roles, where resources, time, and collaboration have proven to be lacking. Finally, it has emerged that relationship building, and early interventions are effective methods for preventing youth crime in Sweden. / Ungdomskriminalitet är ett ständigt växande samhällsproblem där yrkesverksamma står inför fenomenets komplexitet. För att kunna hantera och förebygga ungdomsbrottsligheten är det av vikt att genomföra åtgärder och förebyggande insatser där fältarbetare utgör en viktig insats. Det blir därför intressant att undersöka hur fältarbetare upplever och aktivt genomför brottsförebyggande åtgärder för barn och unga i Sverige. Detta är en kvalitativ studie som grundar sig på två semistrukturerade gruppintervjuer med fältarbetare. Analysen av det empiriska materialet genomfördes genom en kvalitativ metodik, tidigare forskning och två valda teorier som är av relevans för studiens ändamål. Resultaten från analysen genererade i olika teman som beskriver fältarbetarnas upplevelser och erfarenheter.Studiens resultatdel är fördelad i olika delar relaterat till de tre frågeställningar som vi ämnar undersöka. Utöver detta redogör resultatdelen för fältarbetarnas svårigheter i deras yrkesroll där resurser, tid och samverkan har visat sig vara bristfällig. Slutligen har det framkommit att relationsskapande och tidiga åtgärder är effektiva metoder för att förebygga ungdomsbrottslighet i Sverige.

This Master thesis explores delinquency of juvenile Czechs and Germans from seventh to ninth grade based on quantitative data. The data comes from an International Self-Report Delinquency study (ISRD-2), which is anchored primarily in the Social control theory (Hirschi, 1969/2002) and the General theory of crime (Gottfredson, Hirschi, 1990). Therefore, in the first section, attention is paid to these and other selected criminological theories; the other theories are mainly the strain theories and the cultural deviance theories. In the second section, the thesis deals briefly with the socio- cultural differences and similarities between the Czech Republic and Germany. The core of the thesis is the third, analytical section, which presents the findings of statistical analysis. A conclusion is reached that the theories studied are by far less contradictory than what the authors of the social control theory and the general theory of crime claimed them to be. It rather seems that the individual theories are complementary and often lead to the same predictions. Hypotheses are confirmed that some characteristics of the pupils` relation to their school are related to delinquency: Pupils who like going to school are somewhat less delinquent than pupils who do not. Pupils who play truant are substantially...

La résolution de problème est souvent utilisée comme outil de mesure des capacités cognitives individuelles chez les animaux non-humains, puisqu’elle permet d’étudier leurs capacités d’apprentissage opérant et d’innovation. Les capacités cognitives diffèrent selon les espèces et les individus, et leur permettent de maximiser leur aptitude. Par exemple, chez les oiseaux et les mammifères, les espèces avec de plus gros cerveaux relatifs possèderaient de meilleures capacités d’apprentissage sociale et d’innovation, qui leur permettent de mieux s’adapter à un environnement nouveau. Malgré l’utilisation répandue des diamants mandarins dans la recherche en écologie comportementale, l’impact du sexe sur la performance de résolution de problème et la répétabilité des performances ont souvent été négligés, et aucune étude, à notre connaissance, ne s’est intéressée à leur performance en contexte de résolution de problème coopérative. Dans le cadre de notre étude, nous avons décidé d’aborder ces différents aspects pour améliorer notre compréhension des capacités cognitives et de la coopération chez cette espèce modèle. Nous avons confronté des diamants mâles et femelles à trois tests de résolution de problème individuelle (test de la ficelle, test de la barre et test du couvercle) et un test de résolution de problème coopérative. Pour ce dernier, nous avons séparé les individus en deux groupes : couples sociaux et couples expérimentaux, afin de manipuler le lien social entre individus. Les couples sociaux étaient composés d’un mâle et d’une femelle ayant cohabité pendant 7 jours, alors que les couples expérimentaux étaient composés d’un mâle et d’une femelle ne s’étant jamais rencontrés auparavant. Bien que nous nous attendions à ce que le sexe n’ait pas d’impact sur la performance de résolution, nos résultats ont révélé que, en moyenne, les mâles étaient plus rapides pour résoudre un test de résolution de problème individuelle. Ces résultats étaient principalement attribuables à leur performance sur le deuxième test de résolution de problème individuelle (test de la barre). Nous pensons que cette différence pourrait être due à un niveau de persistance plus élevé chez les mâles et/ou à l’impact de la sélection sexuelle sur les performances cognitives, et que ces aspects devraient être davantage explorés dans de futures études. Ensuite, en accord avec nos attentes, nos résultats ont confirmé l’hypothèse de la répétabilité contextuelle, selon laquelle les performances de résolution sont constantes entre différentes tâches impliquant le même processus cognitif. Enfin, nous nous attendions à ce que les couples sociaux soient plus performants que les couples expérimentaux sur le test de résolution de problème coopérative, puisque nous les pensions davantage capables de synchronisation et de coordination comportementale. Or, nous avons trouvé des résultats suggérant le contraire, et nous avons constaté que la performance du couple au test de résolution de problème coopérative, était principalement expliquée par les performances de résolution individuelle de chaque partenaire. Des questions subsistent quant aux raisons pour lesquelles les couples expérimentaux ont mieux performé que les couples sociaux. Est-ce qu’une différence de motivation pourrait être à l’origine de ces résultats ? De futures études seront nécessaires pour nous éclairer. Malgré les questions en suspens, nos résultats contribuent à enrichir nos connaissances sur les capacités cognitives individuelles, la résolution de problème ainsi que la coopération. / Problem solving is often used as a tool for measuring individual cognitive abilities in non-human animals, since it enables us to study their operant learning and innovation capacities. Cognitive capacities differ between species and individuals, enabling them to maximize their abilities. For example, in birds and mammals, species with larger relative brains are said to have better social learning and innovation capacities, enabling them to adapt better to new environments. Despite the widespread use of zebra finches in behavioral ecology research, the impact of sex on problem-solving performance and the repeatability of performance have often been overlooked and, to our knowledge, no studies have investigated their performance in cooperative problem-solving contexts. In our study, we decided to address these different aspects to improve our understanding of cognitive abilities and cooperation in this model species. We tested male and female zebra finches in three individual problem-solving tests (string test, bar test and lid test) and one cooperative problem-solving test. For the latter, we separated the individuals into two groups: social pairs and experimental pairs, to manipulate the social bond between individuals. Social pairs were made up of a male and a female who had cohabited for 7 days, while experimental pairs were made up of a male and a female who had never met before. While we expected sex to have no impact on solving performance, our results revealed that, on average, males were faster at solving individual problem-solving tests. These results were mainly attributable to their performance on the second individual problem-solving test (bar test). We believe that this difference could be attributable to a higher level of persistence in males and/or the impact of sexual selection on cognitive performance, and that these aspects should be explored in future studies. Secondly, in line with our expectations, our results confirmed the contextual repeatability hypothesis, according to which solving performance is consistent across trials requiring the same cognitive process. Finally, we expected social pairs to perform better than experimental pairs on the cooperative problem-solving test, since we expected them to be more capable of synchronisation and behavioral coordination. . However, we found results suggesting the opposite, and the performance of the pairs on the cooperative problem-solving task was mainly explained by the ability of each partner to solve a problem. Questions remain as to why the experimental pairs performed better than the social pairs. Could a difference in motivation be behind these results? Future studies are needed to shed light on this. Despite the outstanding questions, we believe that our results contribute to our knowledge of individual cognitive abilities, problem solving and cooperation.