L’addiction à Internet a fait l’objet de nombreuses études à travers le monde durant les vingt dernières années. Pourtant aucun consensus au sujet de sa définition ou de ses critères diagnostiques n’a encore été admis, soulevant ainsi de nombreux débats. Ce travail a pour objectif d’étudier la conceptualisation de l’addiction à Internet principalement au travers de ses outils d’évaluation, et de combler un manque de données empiriques au sein d’échantillons français.Étude 1 – Objectif : Déterminer le nombre d’outils de mesure de l’addiction à Internet et mettre en avant leurs qualités psychométriques. Résultats : Quarante-cinq outils mesurant l’addiction à Internet ont été identifiés dont seulement dix-sept ayant été évalués plus d’une fois en termes de propriétés psychométriques. La plupart des échelles existantes nécessitent de plus amples travaux de validation. Bien que critiqué, l’Internet Addiction Test (IAT) est l’échelle présentant le plus de supports empiriques. Cependant, de nombreuses échelles prometteuses requièrent un examen plus approfondi. Étude 2 – Objectif : Évaluer les qualités psychométriques de l’Online Cognition Scale (OCS). Résultats : Les analyses factorielles de l’OCS suggéraient un meilleur ajustement du modèle avec une solution à 5 facteurs (27 items), comparé au modèle original (36 items). Nos résultats mettent en avant une excellente consistance interne et des corrélations inter items et test-retest satisfaisantes. Les scores de l’OCS étaient significativement corrélés avec ceux de l’IAT, du temps passé en ligne et des symptômes dépressifs au cours des deux passations. Étude 3 – Objectifs : Évaluer les qualités psychométriques de la Generalized Problematic Internet Use Scale-2 et la pertinence du modèle d’Utilisation Problématique Généralisée d’Internet (UPGI) au sein d’étudiants français. Résultats : Les résultats de la modélisation en équations structurelles soutiennent ce modèle conceptuel de l’addiction à Internet, et un bon ajustement du modèle aux données. Les qualités psychométriques de la version française de la GPIUS-2 étaient satisfaisantes, notamment la fiabilité, et les validités convergente et concurrente, confirmant l’utilité de cet outil multidimensionnel. Étude 4 – Objectif : Explorer la relation entre l’UPGI et les Utilisations Problématiques Spécifiques d’Internet (UPSI). Résultats : Nos analyses mettent avant des relations significatives entre l’UPGI, les symptômes psychopathologiques et la plupart des UPSI, avec de nombreuses différences en fonction du genre et de l’âge. Alors que les scores d’UPSIcommunication prédisaient ceux d’UPGI chez l’ensemble des participants, ceux d’UPSIrecherche d’informations et jeux en ligne, ainsi que les symptômes dépressifs n’étaient significatifs que chez les femmes, les hommes et les jeunes adultes, et l’UPSIconsommation de vidéo/musique et le temps passé en ligne uniquement chez les femmes et les jeunes adultes. / Internet addiction has been the subject of numerous studies worldwide, during the last twenty years. Yet, no consensus on its definition or diagnosis criteria has been admitted, which therefore is triggering numerous debates. The present research aims to study the conceptualization of Internet addiction mainly through its assessment tools, and to fill in the lack of empirical data among French samples.Study 1 - Aim: To assess the measurement tools for Internet addiction and their psychometric properties. Results: Forty-five tools assessing Internet addiction were identified, of which only seventeen had been evaluated more than once in terms of their psychometric properties. Most of the existing scales for Internet addiction require further validation work. Despite criticism, the Internet Addiction Test (IAT) appears to be the scale with the most empirical support. However, numerous promising scales warrant further examination.Study 2 - Aim: To evaluate the psychometric properties of the Online Cognition Scale (OCS). Results: Confirmatory factorial analyses showed that the 4-factor solution did not demonstrate satisfactory fit but the 5-factor model was found to better fit the data. Our results revealed that the scale scores demonstrated excellent internal consistency and satisfying inter-item correlation and test-retest reliability. The OCS was significantly correlated with the IAT, time spent online and depressive symptoms at both time points.Study 3 - Aim: To evaluate the psychometric properties of the Generalized Problematic Internet Use Scale-2 and the relevance of the Generalized Problematic Internet Use (GPIU) model among French users. Results: Path analysis provided support for this conceptual model of problematic Internet use, and a good fit to the data. The psychometric properties of the French version of the GPIUS-2 were satisfying, including reliability, concurrent and convergent validities, suggesting the usefulness of this multidimensional tool.Study 4 - Aim: To explore the relationship between GPIU and Specific Problematic Internet Uses (SPIU) Results: Our analysis revealed significant relationships between GPIU, psychopathological symptoms and most of SPIU, with many differences according to gender and age. SPIUcommunication scores significantly predict GPIU scores among the whole sample, whereas SPIUinformation seeking and gaming, and depressive symptoms were only significant among women, men and young adults, and SPIUconsumption of video/music and time spent online, among women and young adults.

The purpose of the study was to investigate the relationship betweensocial anxiety disorder and problematic internet use. Individuals withsocial anxiety disorder might prefer online interaction compared toface-to-face interaction. This could develop into problematic internetuse (PIU). PIU is when an individual uses the internet to the degreethat it negatively affects the individual’s life, based on Davis’ (2001)model of problematic internet use. The data was collected using anonline survey. There was a total of 484 participants in the finalanalyses, with 26.1% males, 71.5% females (Mage=27.99, SD= 10.1).First, a correlation analysis was done between social anxiety and PIU.The results showed that there was a positive correlation between socialanxiety and problematic internet use (r=.53). We then used age as amoderator to investigate if age had a moderating effect on socialanxiety and problematic internet use, using a moderation analysis. Theanalysis revealed a significant moderation effect of age, but a low leveloverall of PIU in the sample. This meant that even at high levels ofsocial anxiety, the sample did not display PIU-behaviors. Furtherresearch is needed to investigate the relationship between socialanxiety, PIU and what it looks like for different age groups. / Syftet med studien var att undersöka förhållandet mellan social fobioch problematisk internetanvändning och hur detta modererar medålder. Individer med social fobi kan uppleva det mer bekvämt attinteragera genom internet i jämförelse med i verkligheten. Detta kanleda till att individen utvecklar problematiskt internetanvändande(PIU). PIU innebär att en individ använder internet på ett sätt somnegativt påverkar individens liv, utifrån Davis (2001) modell förproblematiskt internetanvändande. Datainsamlingen skedde genom enwebbenkät. Totalt var det 484 deltagare i studien (Målder=27.99,SD=10.1), med 26.1% män och 71.5% kvinnor. Först genomfördes enkorrelationsanalys mellan social fobi och PIU. Resultaten visar att detfinns en positiv korrelation mellan social fobi och problematisktinternetanvändande (r=.53). Vi använde ålder som en variabel i vårforskning för att undersöka om ålder har en moderationseffekt påsocial fobi och problematiskt internetanvändande. För att undersökadetta genomförde vi en moderationsanalys. Resultaten visade att ålderhar en signifikant effekt på social fobi och PIU, men att det inte fannsen särskilt hög nivå av PIU hos deltagarna. Detta innebar att även vidhöga nivåer av social fobi uppvisade inte deltagarna PIU-beteenden.Framtida forskning är nödvändigt för att etablera hur förhållandetmellan social fobi och problematiskt internetanvändande ser ut mellanolika åldrar.

BACKGROUND: The Problematic Internet use among adolescents is an increasingly discussed topic in connection with the continuous development of technologies. If it enters to the period of adolescent age factor of hematoncological disease, which requires long term tratment and isolation for a long time, the risk of growth of non-substance addictive behavior is likely to increase in this context. AIM: The main aim of the research was to find out the prevalence of Problematic Internet use in a group of adolescent patients after the intensive cancer treatment within the Department of Pediatric Hematology and Oncology of the University Hospital in Motol (KDHO). Another aim was to map specific characteristics that may be a predictor of later risk behavior and to find out possible correlation between these characteristics and problematic Internet use. METHODS: The concept of the research is based on quantitative methods of epidemiological cases and controls study. The data were collected through a screening questionnaire survey using a compilation of a short version of the Problematic Internet Use Questionnaire (PIU Q- SF 6) and Substance Use Risk Profile (SURPS) personality traits). Data were evaluated using descriptive statistics and the χ2 test. The p value p < 0,05 was determined as statistically...

This study examined the association of social anxiety, loneliness, and problematic Internet use (PIU) with the online solicitation of minors. Within a convenience sample of adult Internet users from Germany, Finland, and Sweden (N = 2,828), we compared the responses of participants who had not interacted sexually with strangers online (n = 2,049) with participants who sexually interacted with unknown adults online (n = 642), and both groups with adults who sexually solicited unknown minors online (n = 137). Online sexual interaction with adults was associated with higher levels of social anxiety, loneliness, and PIU compared with not sexually interacting with strangers online. Sexually soliciting minors online was associated with higher levels of social anxiety, loneliness, and PIU compared with sexually interacting with adults and not sexually interacting with strangers at all. Interestingly, compared with those with adult contacts, loneliness was specifically pronounced for participants who solicited children, whereas social anxiety and PIU were pronounced for participants soliciting adolescents. These findings suggest that social anxiety, loneliness, and PIU may be among the motivators for using the Internet to solicit individuals of different age groups for sexual purposes. These factors emerged as specifically relevant for adults who sexually solicited minors and who reported greater impairments compared with adults who sexually interacted with adults. These characteristics may thus be important to consider for assessment and treatment procedures for individuals soliciting minors online.

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Submitted by Cristiane Chim (cristiane.chim@ucpel.edu.br) on 2018-07-20T12:30:29Z No. of bitstreams: 1 Rosangela de Mattos Muller.pdf: 962789 bytes, checksum: 383c73cf4eacc5fb95ef62f66d865c8f (MD5) / Made available in DSpace on 2018-07-20T12:30:29Z (GMT). No. of bitstreams: 1 Rosangela de Mattos Muller.pdf: 962789 bytes, checksum: 383c73cf4eacc5fb95ef62f66d865c8f (MD5) Previous issue date: 2018-03-27 / Introduction: The internet has many features and is fully integrated with modern society. Studies show that some individuals are losing control of time, neglecting their basic hygiene care, social interaction, causing significant losses in their relationships, academic and professional activities. Objectives: The objective of the study was to verify the prevalence of Internet addiction in undergraduate students from two public and private universities and a Federal Institute in the city of Pelotas and to investigate associated factors. Methods: A crosssectional and randomized study was performed using the following instruments: International Addiction Test, International Physical Activity Questionnaire, Beck Depression Inventory, Epworth Sleepiness Scale and Games Dependency Questionnaire. Results: The prevalence of internet addiction was 41.7%, being inversely proportional to age. There was a significant correlation with depression, those who presented changes in screening tests for depression had a prevalence of internet addiction 83% higher. Three out of ten university students presented daytime somnolence and 3% of the sample were classified as at risk for gambling dependence. There is a correlation between consumption of hypercaloric foods, alcohol use and sedentary lifestyle, and dependence on the internet. Conclusion: The dependence of internet on university students is a reality that needs to be approached in an interdisciplinary way, since it compromises the physical and mental health of these young people. / Introdução: A internet apresenta inúmeras funcionalidades e está totalmente integrada à sociedade moderna. Estudos evidenciam que alguns indivíduos estariam perdendo o controle do tempo, negligenciando seus cuidados básicos de higiene, convívio social, acarretando prejuízos significativos em seus relacionamentos, atividades acadêmicas e profissionais. Objetivos: O objetivo do estudo foi verificar a prevalência de dependência de internet em estudantes universitários dos cursos de graduação de duas universidades, pública e privada, e de um Instituto Federal na cidade de Pelotas e investigar fatores associados. Métodos: Foi realizado estudo transversal e randomizado, sendo utilizados os seguintes instrumentos: International Addiction Test, International Physical Activity Questionnaire, Beck Depression Inventory, Epworth sleepness scale e Game Addiction Scale. Resultados: A prevalência de dependência de internet foi de 41,7%, sendo inversamente proporcional à idade. Verificou-se uma correlação significativa com depressão, aqueles que apresentaram alterações nos testes de triagem para depressão tiveram uma prevalência de dependência de internet 83% maior. Três em cada dez universitários apresentaram sonolência diurna e 3% da amostra foram classificados como em risco para dependência de jogos. Existe uma correlação entre o consumo de alimentos hipercalóricos, uso de álcool e sedentarismo e dependência de internet. Conclusão: A dependência de internet em universitários é uma realidade que precisa ser abordada de uma maneira interdisciplinar, visto que compromete a saúde física e mental desses jovens.

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