Mine hovedinteresser innen forskning er :

• Målingsmetodikk (klassisk og moderne testteori)
• Anvendelser av flernivåanalyse
• Måling av sosioøkonomisk status blant barn og unge
• Subjektive helseplager blant barn og unge

 

 

 

Jeg underviser i statistikk og  kvantitativ metode på alle studienivåer.

 

Vitenskapelig artikkel

• Brook, Martika Irene; Bøe, Tormod; Samdal, Oddrun et al. (2024). Examining the Psychometric Properties of the Family Affluence Scale in Norwegian Health Behaviour in School-Aged Children Surveys: Implications for Time Trend Analysis. (ekstern lenke)
• Mathisen, Frida Kathrine Sofie; Torsheim, Torbjørn; Falco, Coral et al. (2023). Leisure-time physical activity trajectories from adolescence to adulthood in relation to several activity domains: a 27-year longitudinal study. (ekstern lenke)
• de Looze, Margaretha E.; Henking, Christoph; Torsheim, Torbjørn et al. (2022). The association between MPOWER tobacco control policies and adolescent smoking across 36 countries: An ecological study over time (2006–2014). (ekstern lenke)
• Engebø, Jonny; Torsheim, Torbjørn; Pallesen, Ståle (2022). Gamblers' use of measures to prevent gambling problems and reduce harm. (ekstern lenke)
• Aarø, Leif Edvard; Fismen, Anne-Siri; Wold, Bente et al. (2022). Nordic adolescents responding to demanding survey scales in boring contexts: Examining straightlining. (ekstern lenke)
• Leal-López, Eva; Sánchez-Queija, Inmaculada; Vieno, Alessio et al. (2021). Cross-national time trends in adolescent alcohol use from 2002 to 2014. (ekstern lenke)
• Leino, Tony Mathias; Torsheim, Torbjørn; Griffiths, Mark D. et al. (2021). The relationship between substance use disorder and gambling disorder: A nationwide longitudinal health registry study. (ekstern lenke)
• Engebø, Jonny; Torsheim, Torbjørn; Pallesen, Ståle (2021). Regulatory Measures' Effect on Gambling Participation: Experiences From Norway. (ekstern lenke)
• Heinz, Andreas; Catunda, Carolina; van Duin, Claire et al. (2020). Patterns of Health-Related Gender Inequalities—A Cluster Analysis of 45 Countries. (ekstern lenke)
• Erevik, Eilin K.; Pallesen, Ståle; Mohn, Mette et al. (2020). The Norwegian remote intervention program for problem gambling: Short- and long-term outcomes. (ekstern lenke)
• Erevik, Eilin K.; Kristensen, Joakim Hellumbråten; Torsheim, Torbjørn et al. (2020). Tinder use and romantic relationship formations: A large-scale longitudinal study. (ekstern lenke)
• Carlsen, Siv-Elin Leirvåg; Lunde, Linn-Heidi; Torsheim, Torbjørn (2020). Opioid and Polydrug Use Among Patients in Opioid Maintenance Treatment. (ekstern lenke)
• Erevik, Eilin K.; Torsheim, Torbjørn; Vedaa, Øystein et al. (2020). Demographical, personality, alcohol use, and mental health characteristics associated with different alcoholic beverage preferences among students. (ekstern lenke)
• Erevik, Eilin K.; Pallesen, Ståle; Vedaa, Øystein et al. (2020). General and alcohol-related social media use and mental health: A large-sample longitudinal study. (ekstern lenke)
• Molde, Helge; Holmøy, Bjørn; Merkesdal, Alexander Garvik et al. (2019). Are Video Games a Gateway to Gambling? A Longitudinal Study Based on a Representative Norwegian Sample. (ekstern lenke)
• Potrebny, Thomas; Wiium, Nora; Haugstvedt, Anne et al. (2019). Health complaints among adolescents in Norway: A twenty-year perspective on trends. (ekstern lenke)
• Molde, Helge; Nordhus, Inger Hilde; Torsheim, Torbjørn et al. (2019). A cross-national analysis of the psychometric properties of the Geriatric Anxiety Inventory. (ekstern lenke)
• Hagquist, Curt; Due, Pernille; Torsheim, Torbjørn et al. (2019). Cross-country comparisons of trends in adolescent psychosomatic symptoms - A Rasch analysis of HBSC data from four Nordic countries. (ekstern lenke)
• Erevik, Eilin K.; Torsheim, Torbjørn; Andreassen, Cecilie Schou et al. (2019). The associations between low-level gaming, high-level gaming and problematic alcohol use. (ekstern lenke)
• Bless, Josef J; Hjelmervik, Helene; Torsheim, Torbjørn et al. (2019). Temporal Signatures of Auditory Verbal Hallucinations: An App-Based Experience Sampling Study. (ekstern lenke)
• Hendriks, Anne M; Bartels, Meike; Stevens, Gonneke W J M et al. (2019). National Child and Adolescent Health Policies as Indicators of Adolescent Mental Health: A Multilevel Analysis of 30 European Countries . (ekstern lenke)
• Engebø, Jonny; Torsheim, Torbjørn; Mentzoni, Rune Aune et al. (2019). Predictors of Gamblers Beliefs About Responsible Gambling Measures. (ekstern lenke)
• Carlsen, Siv-Elin Leirvåg; Torsheim, Torbjørn (2019). Self-reported adverse experiences and age of opioid onset for first time admitteto opioid maintenance treatment. (ekstern lenke)
• Erevik, Eilin K.; Pallesen, Ståle; Andreassen, Cecilie Schou et al. (2019). Demographics, personality and substance-use characteristics associated with forming romantic relationships. (ekstern lenke)
• Arnarsson, Arsaell; Nygren, Jens; Nyholm, Maria et al. (2019). Cyberbullying and traditional bullying among Nordic adolescents and their impact on life satisfaction. (ekstern lenke)
• Potrebny, Thomas; Torsheim, Torbjørn; Due, Pernille et al. (2019). Trends in excellent self-rated health among adolescents: A comparative Nordic study. (ekstern lenke)
• Arnarsson, Arsaell; Potrebny, Thomas; Torsheim, Torbjørn et al. (2019). Time-trends in Nordic adolescents’ communication with their parents. (ekstern lenke)
• Due, Pernille; Eriksson, Charli; Torsheim, Torbjørn et al. (2019). Trends in high life satisfaction among adolescents in five Nordic countries 2002–2014. (ekstern lenke)
• Eriksson, Charli; Arnarsson, Arsaell; Damsgaard, Mogens Trab et al. (2019). Building knowledge of adolescent mental health in the Nordic countries. (ekstern lenke)
• Lofstedt, Petra; Eriksson, Charli; Potrebny, Thomas et al. (2019). Trends in perceived school stress among adolescents in five Nordic countries 2002–2014. (ekstern lenke)
• Eriksson, Charli; Arnarsson, Arsaell; Damsgaard, Mogens Trab et al. (2019). Towards enhancing research on adolescent positive mental health. (ekstern lenke)
• Mathisen, Frida Kathrine Sofie; Kokko, Sami; Tynjälä, Jorma et al. (2019). Leisure‐time physical activity and participation in organized sports: Changes from 1985 to 2014 in Finland and Norway. (ekstern lenke)
• Carlsen, Siv-Elin Leirvåg; Lunde, Linn-Heidi; Torsheim, Torbjørn (2019). Predictors of quality of life of patients in opioid maintenance treatment in the first year in treatment. (ekstern lenke)
• Andreassen, Cecilie Schou; Pallesen, Ståle; Torsheim, Torbjørn (2018). Workaholism as a Mediator between Work-Related Stressors and Health Outcomes. (ekstern lenke)
• Erevik, Eilin K.; Pallesen, Ståle; Andreassen, Cecilie Schou et al. (2018). Who is watching user-generated alcohol posts on social media?. (ekstern lenke)
• Andreassen, Cecilie Schou; Pallesen, Ståle; Griffiths, Mark D. et al. (2018). The development and validation of the Bergen-Yale Sex Addiction Scale With a large national sample. (ekstern lenke)
• Andreassen, Cecilie Schou; Pallesen, Ståle; Torsheim, Torbjørn et al. (2018). Tanning addiction: conceptualization, assessment and correlates. (ekstern lenke)
• Sagoe, Dominic; Pallesen, Ståle; Hanss, Daniel et al. (2018). Mental health symptoms and gambling behaviour: A longitudinal study from adolescence to emerging adulthood. (ekstern lenke)
• Erevik, Eilin K.; Pallesen, Ståle; Vedaa, Øystein et al. (2018). "Freshman's week": Characteristics associated with participation and experiencing adverse effects. (ekstern lenke)
• Sørlie, Mari-Anne; Idsoe, Thormod; Ogden, Terje et al. (2018). Behavioral Trajectories During Middle Childhood: Differential Effects of the School-Wide Positive Behavior Support Model. (ekstern lenke)
• Krossbakken, Elfrid; Torsheim, Torbjørn; Mentzoni, Rune Aune et al. (2018). The effectiveness of a parental guide for prevention of problematic video gaming in children: A public health randomized controlled intervention study. (ekstern lenke)
• Braatveit, Kirsten; Torsheim, Torbjørn; Hove, Oddbjørn (2018). Screening for intellectual disabilities: a validation of the Hayes Ability Screening Index for in-patients with substance use disorder. (ekstern lenke)
• Myrseth, Helga; Pallesen, Ståle; Torsheim, Torbjørn et al. (2018). Prevalence and correlates of stimulant and depressant pharmacological cognitive enhancement among Norwegian students. (ekstern lenke)
• Krossbakken, Elfrid; Pallesen, Ståle; Mentzoni, Rune Aune et al. (2018). A Cross-Lagged Study of Developmental Trajectories of Video Game Engagement, Addiction, and Mental Health. (ekstern lenke)
• Braatveit, Kirsten; Torsheim, Torbjørn; Hove, Oddbjørn (2018). Intellectual Functioning in In-Patients with Substance Use Disorders: Preliminary Results from a Clinical Mediation Study of Factors Contributing to IQ Variance. (ekstern lenke)
• Torsheim, Torbjørn; Nygren, Jens; Rasmussen, Mette et al. (2018). Social inequalities in self-rated health: A comparative cross-national study among 32,560 Nordic adolescents. (ekstern lenke)
• Ramdahl, Mai Emilie; Jensen, Sofie Skjelstad; Borgund, Eleni et al. (2018). Family wealth and parent?child relationships. (ekstern lenke)
• Braatveit, Kirsten; Torsheim, Torbjørn; Hove, Oddbjørn (2018). The Prevalence and Characteristics of Intellectual and Borderline Intellectual Disabilities in a Sample of Inpatients with Substance Use Disorders: Preliminary Clinical Results. (ekstern lenke)
• de Looze, Margaretha E.; Huijts, Tim; Stevens, GWJM et al. (2017). The Happiest Kids on Earth. Gender Equality and Adolescent Life Satisfaction in Europe and North America. (ekstern lenke)
• Sagoe, Dominic; Pallesen, Ståle; Hanss, Daniel et al. (2017). The relationships between mental health symptoms and gambling behavior in the transition from adolescence to emerging adulthood.. (ekstern lenke)
• Elgar, Frank J.; Gariépy, Geneviève; Torsheim, Torbjørn et al. (2017). Early-life income inequality and adolescent health and well-being. (ekstern lenke)
• Erevik, Eilin K.; Torsheim, Torbjørn; Vedaa, Øystein et al. (2017). Sharing of alcohol-related content on social networking sites: Frequency, content, and correlates. (ekstern lenke)
• Molde, Helge; Hynninen, Kia Minna; Torsheim, Torbjørn et al. (2017). A Bifactor and item response analysis of the geriatric anxiety inventory. (ekstern lenke)
• Erevik, Eilin K.; Pallesen, Ståle; Vedaa, Øystein et al. (2017). Alcohol use among Norwegian students: Demographics, personality and psychological health correlates of drinking patterns. (ekstern lenke)
• Erevik, Eilin K.; Torsheim, Torbjørn; Andreassen, Cecilie Schou et al. (2017). Recurrent cannabis use among Norwegian students: Prevalence, characteristics, and polysubstance use. (ekstern lenke)
• Dhir, Amandeep; Torsheim, Torbjørn; Pallesen, Ståle et al. (2017). Do online privacy concerns predict selfie behavior among adolescents, young adults and adults?. (ekstern lenke)
• Erevik, Eilin K.; Torsheim, Torbjørn; Andreassen, Cecilie Schou et al. (2017). Disclosure and exposure of alcohol on social media and later alcohol use: A large-scale longitudinal study. (ekstern lenke)
• Erevik, Eilin K.; Torsheim, Torbjørn; Vedaa, Øystein et al. (2017). Alcohol use among business students: Demographic, personality, and social correlates of increased consumption. (ekstern lenke)
• Torsheim, Torbjørn; Cavallo, Franco; Levin, Kate Ann et al. (2016). Psychometric Validation of the Revised Family Affluence Scale: a Latent Variable Approach. (ekstern lenke)
• Bjåstad, Jon Fauskanger; Haugland, Bente Storm Mowatt; Fjermestad, Krister et al. (2016). Competence and adherence scale for cognitive behavioral therapy (CAS-CBT) for anxiety disorders in youth: Psychometric properties. (ekstern lenke)
• Dhir, Amandeep; Torsheim, Torbjørn (2016). Age and gender differences in photo tagging gratifications. (ekstern lenke)
• Dhir, Amandeep; Pallesen, Ståle; Torsheim, Torbjørn et al. (2016). Do age and gender differences exist in selfie-related behaviours?. (ekstern lenke)
• Mortensen, Øystein Frank Tomas; Torsheim, Torbjørn; Thuen, Frode (2016). Participant characteristics and outcomes of relationship education in the transition to parenthood. (ekstern lenke)
• Dundas, Ingrid; Torsheim, Torbjørn; Hjeltnes, Aslak et al. (2016). Mindfulness based stress reduction for academic evaluation anxiety: a naturalistic longitudinal study. (ekstern lenke)
• Bosnes, Ole; Troland, Kari; Torsheim, Torbjørn (2016). A Confirmatory Factor Analytic Study of the Wechsler Memory Scale-III in an Elderly Norwegian Sample. (ekstern lenke)
• Olsen, Olav Kjellevold; Pallesen, Ståle; Torsheim, Torbjørn et al. (2016). The effect of sleep deprivation on leadership behaviour in military officers: an experimental study. (ekstern lenke)
• Fismen, Anne-Siri; Smith, Otto Robert Frans; Torsheim, Torbjørn et al. (2016). Trends in Food Habits and Their Relation to Socioeconomic Status among Nordic Adolescents 2001/2002 - 2009/2010. (ekstern lenke)
• Schnohr, Christina W.; Gobina, Inese; Santos, Teresa et al. (2016). Semantics bias in cross-national comparative analyses: Is it good or bad to have "fair" health?. (ekstern lenke)
• Leino, Tony; Torsheim, Torbjørn; Pallesen, Ståle et al. (2016). An empirical real-world study of losses disguised as wins in electronic gaming machines. (ekstern lenke)
• Hanss, Daniel; Mentzoni, Rune Aune; Blaszczynski, Alex et al. (2015). Prevalence and correlates of problem gambling in a representative sample of Norwegian 17-years olds. (ekstern lenke)
• Sagoe, Dominic; Torsheim, Torbjørn; Molde, Helge et al. (2015). Anabolic-androgenic steroid use in the Nordic countries: A meta-analysis and meta-regression analysis. (ekstern lenke)
• Sagoe, Dominic; Andreassen, Cecilie Schou; Molde, Helge et al. (2015). Prevalence and correlates of anabolic-androgenic steroid use in a nationally representative sample of 17-year-old Norwegian adolescents. (ekstern lenke)
• Sagoe, Dominic; Torsheim, Torbjørn; Molde, Helge et al. (2015). Attitudes towards use of anabolic-androgenic steroids among Ghanaian high school students. (ekstern lenke)
• Henriksen, Roger Ekeberg; Torsheim, Torbjørn; Thuen, Frode (2015). Relationship satisfaction reduces the risk of maternal infectious diseases in pregnancy: The Norwegian mother and child cohort study. (ekstern lenke)
• Elgar, Frank J.; McKinnon, Britt; Torsheim, Torbjørn et al. (2015). Patterns of socioeconomic inequality in adolescent health differ according to the measure of socioeconomic position. (ekstern lenke)
• Mellingen, Sonja; Torsheim, Torbjørn; Thuen, Frode (2015). Predictors of postpartum change in alcohol use in Norwegian mothers. (ekstern lenke)
• Andreassen, Cecilie Schou; Griffiths, Mark D.; Pallesen, Ståle et al. (2015). The Bergen Shopping Addiction Scale: Reliability and validity of a brief screening test . (ekstern lenke)
• Schnohr, Christina W.; Molcho, Michal; Rasmussen, Mette et al. (2015). Trend analyses in the health behaviour in school-aged children study: Methodological considerations and recommendations. (ekstern lenke)
• Pförtner, Timo-Kolja; Günther, Sebastian; Levin, Kate Ann et al. (2015). The use of parental occupation in adolescent health surveys. An application of ISCO-based measures of occupational status. (ekstern lenke)
• Torsheim, Torbjørn; Sørlie, Mari-Anne; Olseth, Asgeir et al. (2015). Environmental and temperamental correlates of alcohol user patterns in grade 7 students :. (ekstern lenke)
• Mellingen, Sonja; Torsheim, Torbjørn; Thuen, Frode (2015). Effect of pre-pregnancy alcohol consumption on postpartum relationship satisfaction and divorce among Norwegian mothers.. (ekstern lenke)
• Leino, Tony; Torsheim, Torbjørn; Blaszczynski, Alex et al. (2014). The relationship between structural game characteristics and gambling behavior: a population-level study. (ekstern lenke)
• Birkeland, Marianne Skogbrott; Torsheim, Torbjørn; Leversen, Ingrid et al. (2014). Pathways to adulthood and their precursors and outcomes. (ekstern lenke)
• Henriksen, Roger Ekeberg; Torsheim, Torbjørn; Thuen, Frode (2014). Loneliness, social integration and consumption of sugar-containing beverages: Testing the social baseline theory. (ekstern lenke)
• Andreassen, Cecilie Schou; Torsheim, Torbjørn; Pallesen, Ståle (2014). Predictors of use of social network sites at work - a specific type of cyberloafing. (ekstern lenke)
• Makransky, Guido; Schnohr, Christina Warrer; Torsheim, Torbjørn et al. (2014). Equating the HBSC Family Affluence Scale across survey years: a method to account for item parameter drift using the Rasch model. (ekstern lenke)
• Fismen, Anne-Siri; Smith, Robert; Torsheim, Torbjørn et al. (2014). A school based study of time trends in food habits and their relation to socio-economic status among Norwegian adolescents, 2001–2009. (ekstern lenke)
• Thun, Eirunn; Bjorvatn, Bjørn; Torsheim, Torbjørn et al. (2014). Night work and symptoms of anxiety and depression among nurses: A longitudinal study. (ekstern lenke)
• Andreassen, Cecilie Schou; Torsheim, Torbjørn; Pallesen, Ståle (2014). Use of social network sites for personal purpose at work: Does it impair self-reported performance?. (ekstern lenke)
• Schnohr, Christina W.; Makransky, Guido; Kreiner, Svend et al. (2013). Item response drift in the family affluence scale: a study on three consecutive surveys of the health behaviour in school-aged children (HBSC) survey. (ekstern lenke)
• Elgar, Frank J.; De Clercq, Bart; Schnohr, Christina W. et al. (2013). Absolute and relative family affluence and psychosomatic symptoms in adolescents. (ekstern lenke)
• Brunborg, Geir Scott; Mentzoni, Rune Aune; Melkevik, Ole et al. (2013). Gaming addiction, gaming engagement, and psychological health complaints among Norwegian adolescents. (ekstern lenke)
• Hovland, Anders; Nordhus, Inger Hilde; Sjøbø, Trond et al. (2013). Comparing physical exercise in groups to group cognitive behaviour therapy for the treatment of panic disorder in a randomized controlled trial. (ekstern lenke)
• Kant, Leo Eduard Johannes; Skogstad, Anders; Torsheim, Torbjørn et al. (2013). Beware the angry leader: Trait anger and trait anxiety as predictors of petty tyranny. (ekstern lenke)
• Mellingen, Sonja; Torsheim, Torbjørn; Thuen, Frode (2013). Changes in alcohol use and relationship satisfaction in Norwegian couples during pregnancy. (ekstern lenke)
• Mortensen, Øystein Frank Tomas; Torsheim, Torbjørn; Melkevik, Ole et al. (2012). Adding a baby to the equation. Married and cohabiting women's relationship satisfaction in the transition to parenthood. (ekstern lenke)
• Leversen, Ingrid; Torsheim, Torbjørn; Samdal, Oddrun (2012). Gendered leisure activity behavior among Norwegian adolescents across different socio-economic status groups. (ekstern lenke)
• Liu, Yang; Wang, Mei; Villberg, Jari et al. (2012). Reliability and validity of family affluence scale (FAS II) among adolescents in Beijing, China. (ekstern lenke)
• Torsheim, Torbjørn; Samdal, Oddrun; Rasmussen, Mette et al. (2012). Cross-national measurement invariance of the teacher and classmate support scale. (ekstern lenke)
• Andreassen, Cecilie Schou; Torsheim, Torbjørn; Brunborg, Geir Scott et al. (2012). Development of a Facebook addiction scale. (ekstern lenke)
• Samdal, Oddrun; Bye, Hege Høivik; Torsheim, Torbjørn et al. (2012). Trender i sosial ulikhet i helseatferd. (ekstern lenke)
• Fismen, Anne-Siri; Samdal, Oddrun; Torsheim, Torbjørn (2012). Family affluence and cultural capital as indicators of social inequalities in adolescent's eating behaviours: a population-based survey. (ekstern lenke)
• Holth, Per; Torsheim, Torbjørn; Sheidow, A et al. (2011). Intensive quality assurance of therapist adherence to behavioral interventions for adolescent substance use problems. (ekstern lenke)
• Skogstad, Anders; Torsheim, Torbjørn; Einarsen, Ståle et al. (2011). Testing the work environment hypothesis of bullying on a group level of analysis: Psychosocial factors as precursors of observed workplace bullying. (ekstern lenke)
• Sørlie, Mari-Anne; Torsheim, Torbjørn (2011). Multilevel analysis of the relationship between teacher collective efficacy and problem behaviour in school. (ekstern lenke)
• Levin, Kate Ann; Torsheim, Torbjørn; Vollebergh, Wilma et al. (2011). National income and income inequality, family affluence and life satisfaction among 13 year old boys and girls: a multilevel study in 35 countries. (ekstern lenke)
• Melkevik, Ole; Torsheim, Torbjørn; Iannotti, Ronald J et al. (2010). Is spending time in screen-based sedentary behaviors associated with less physical activity: a cross national investigation. (ekstern lenke)
• Torsheim, Torbjørn; Eriksson, Lilly; Schnohr, Christina W et al. (2010). Screen-based activities and physical complaints among adolescents from the Nordic countries. (ekstern lenke)
• Melkevik, Ole; Torsheim, Torbjørn; Rasmussen, Mette (2010). Patterns of screen-based sedentary behavior and physical activity and associations with overweight among Norwegian adolescents : a latent profile approach. (ekstern lenke)
• Haug, Ellen; Torsheim, Torbjørn; Samdal, Oddrun (2010). Local school policies increase physical activity in Norwegian secondary schools. (ekstern lenke)
• Haug, Ellen; Torsheim, Torbjørn; Sallis, James F. et al. (2010). The characteristics of the outdoor school environment associated with physical activity. (ekstern lenke)
• Sanne, Bjarte; Torsheim, Torbjørn; Heiervang, Einar et al. (2009). The Strengths and Difficulties Questionnaire in the Bergen Child Study: A Conceptually and Methodically Motivated Structural Analysis. (ekstern lenke)
• Ravens-Sieberer, Ulrike; Torsheim, Torbjørn; Hetland, Jørn et al. (2009). Subjective health, symptom load and quality of life of children and adolescents in Europe. (ekstern lenke)
• Birkeland, Marianne Skogbrott; Torsheim, Torbjørn; Wold, Bente (2009). A longitudinal study of the relationship between leisure-time physical activity and depressed mood among adolescents. (ekstern lenke)
• Pallesen, Ståle; Hetland, Jørn; Sivertsen, Børge et al. (2008). Time trends in sleep-onset difficulties among Norwegian adolescents: 1983–2005. (ekstern lenke)
• Currie, Candace; Molcho, Michal; Boyce, William et al. (2008). Researching health inequalities in adolescents: The development of the Health Behaviour in School-Aged Children (HBSC) Family Affluence Scale. (ekstern lenke)
• Kjønniksen, Lise; Torsheim, Torbjørn; Wold, Bente (2008). Tracking of leisure-time physical activity during adolescence and young adulthood: a 10-year longitudinal study. (ekstern lenke)
• Haug, Ellen; Torsheim, Torbjørn; Samdal, Oddrun (2008). Physical environmental characteristics and individual interests as correlates of physical activity in Norwegian secondary schools: The health behaviour in school-aged children study. (ekstern lenke)
• Ravens-Sieberer, Ulrike; Erhart, Michael; Torsheim, Torbjørn et al. (2008). An International scoring system for self-reported health complaints in adolescents. (ekstern lenke)
• Ulveseter, Grethe; Torsheim, Torbjørn (2007). Helseforskjeller blant ungdom: betydningen av sosial bakgrunn. (ekstern lenke)
• Torsheim, Torbjørn; Leversen, Ingrid; Samdal, Oddrun (2007). Sosial ulikhet i ungdoms helse: Er helseatferd viktig?. (ekstern lenke)
• Skogstad, Anders; Einarsen, Ståle; Torsheim, Torbjørn et al. (2007). The destructiveness of laissez-faire leadership behavior. (ekstern lenke)
• Ulveseter, Grethe; Torsheim, Torbjørn (2007). Helseforskjeller blant ungdom - betydningen av sosial bakgrunn. (ekstern lenke)
• Cavallo, Franco; Zambon, Alessio; Borraccino, Alberto et al. (2006). Girls growing through adolescence have a higher risk of poor health. (ekstern lenke)
• Boyce, William; Torsheim, Torbjørn; Currie, Candace et al. (2006). The Family Affluence Scale as a Measure of National Wealth: Validation of an Adolescent Self-Report Measure. (ekstern lenke)
• Anderssen, Norman; Wold, Bente; Torsheim, Torbjørn (2006). Are parental health habits transmitted to their children? An eight year follow-up of physical activity in adolescents and their parents. (ekstern lenke)
• Wiium, Nora; Torsheim, Torbjørn; Wold, Bente (2006). Normative processes and adolescents' smoking behaviour in Norway: A multilevel analysis. (ekstern lenke)
• Torsheim, Torbjørn; Currie, Candace; Boyce, Will et al. (2006). Country material distribution and adolescents' perceived health: multilevel study of adolescents in 27 countries. (ekstern lenke)
• Mathisen, Gro Ellen; Torsheim, Torbjørn; Einarsen, Ståle (2006). The team-level model of climate for innovation: A two-level confirmatory factor analysis. (ekstern lenke)
• Torsheim, Torbjørn; Ravens-Sieberer, Ulrike; Hetland, Jørn et al. (2006). Cross-national variation of gender differences in adolescent subjective health in Europe and North America. (ekstern lenke)
• Mathisen, Gro Ellen; Torsheim, Torbjørn; Einarsen, Ståle (2006). The team-level model of climate for innovation: A two-level confirmatory factor analysis. (ekstern lenke)
• Jøsendal, Ola; Aarø, Leif Edvard; Torsheim, Torbjørn et al. (2005). Evaluation of the school-based smoking-prevention program "BE smokeFREE". (ekstern lenke)
• Anderssen, Norman; Wold, Bente; Torsheim, Torbjørn (2005). Tracking of physical activity in adolescence. (ekstern lenke)
• Wold, Bente; Torsheim, Torbjørn; Samdal, Oddrun et al. (2005). Nye tall om ungdom: Sosial ulikhet og trender i subjektiv helse og livsstil blant norske ungdom i perioden 1985-2001. (ekstern lenke)
• Mittelmark, Maurice B; Aarø, Leif Edvard; Henriksen, Sigrún Guðlaugsdóttir et al. (2004). Chronic Social Stress in the Community and Associations with Psychological Distress: A Social Psychological Perspective. (ekstern lenke)
• Wold, Bente; Torsheim, Torbjørn; Roberts, Chris et al. (2004). National and school policies on restrictions of teacher smoking: a multilevel analysis of student exposure to teacher smoking in seven European countries. (ekstern lenke)
• Torsheim, Torbjørn; Currie, Candace; Boyce, William et al. (2004). Material deprivation and self-rated health: a multilevel study of adolescents from 22 European and North American countries. (ekstern lenke)
• Torsheim, Torbjørn; Samdal, Oddrun (2004). Teachers as facilitators of student participation in school mental health promotion. (ekstern lenke)
• Mittelmark, Maurice B; Aarø, Leif Edvard; Henriksen, Sigrun G et al. (2004). Chronic social stress in the community and associations with psychological distress: A social psychological perspective. (ekstern lenke)
• Torsheim, Torbjørn; Aarø, Leif Edvard; Wold, Bente (2003). School-related stress, social support, and distress: Prospective analysis of reciprocal and multilevel relationships. (ekstern lenke)
• Haugland, Siren; Wold, Bente; Torsheim, Torbjørn (2003). Relieving the pressure? The Role of Physical Activity in the Relationship Between School-Related Stress and Adolescent Health Complaints. (ekstern lenke)
• Hetland, Jørn; Torsheim, Torbjørn; Aarø, Leif Edvard (2002). Subjective health complaints in adolescence: dimensional structure and variation across gender and age. (ekstern lenke)
• Bru, Edvin; Stephens, Paul; Torsheim, Torbjørn (2002). Students’ Perceptions of Class Management and Reports of Their Own Misbehavior. (ekstern lenke)
• Midthassel, Unni Vere; Manger, Terje; Torsheim, Torbjørn (2002). Community effects on teacher involvement in school development activity: A study of teachers in cities, smaller towns and rural areas in Norway. (ekstern lenke)
• Bru, Edvin; Stephens, Paul; Torsheim, Torbjørn (2002). Students' Perceptions of Class Management and Reports of Their Own Misbehavior. (ekstern lenke)
• Midthassel, Unni Vere; Manger, Terje; Torsheim, Torbjørn (2002). Community effects on teacher involvement in school development activity: A study of teachers in cities, smaller towns and rural areas in Norway. (ekstern lenke)
• Torsheim, Torbjørn; Aarø, Leif Edvard; Wold, Bente (2001). Sense of coherence and school-related stress as predictors of subjective health complaints in early adolescence: Interactive, indirect or direct relationships?. (ekstern lenke)
• Torsheim, Torbjørn; Wold, Bente (2001). School-related stress, support, and subjective health complaints among early adolescents: a multilevel approach. (ekstern lenke)
• Aarø, Leif Edvard; Haugland, Siren; Hetland, Jørn et al. (2001). Psykiske og somatiske plager blant ungdom. (ekstern lenke)
• Johnsen, Marit; Søviknes, Ina; Torsheim, Torbjørn (2001). Mestringsressurser og opplevd skolerelatert stress: en prospektiv studie av gjensidige sammenhenger. (ekstern lenke)
• von Mehren, Benedicte; Kallhovd, Anita Glenne; Torsheim, Torbjørn et al. (2001). Subjektive helseplager blant 15-arige skole-elever: Modererer fysisk aktivitet effekten av skolerelaterte belastninger?. (ekstern lenke)
• Torsheim, Torbjørn; Wold, Bente (2001). School-related stress, school support, and somatic complaints: A general population study. (ekstern lenke)
• Osen, Ellen Margrethe; Torsheim, Torbjørn; Wold, Bente (2000). Skolerelatert støtte som moderator av kjønnsforskjeller i subjektive helseplager hos norsk skoleungdom. (ekstern lenke)
• Torsheim, Torbjørn; Wold, Bente; Samdal, Oddrun (2000). The teacher and classmate support scale: Factor structure, test-retest reliability and validity in samples of 13 - and 15-year old adolescents. (ekstern lenke)
• Aanerød, Ole Kristian; Senneseth, Trude; Wold, Bente et al. (1999). 15-åringers opplevelse av overbelastning i skolen, mestring (sense of coherence) og subjektive helseplager. (ekstern lenke)

Rapport

• Pallesen, Ståle; Mentzoni, Rune Aune; Torsheim, Torbjørn et al. (2020). Omfang av penge- og dataspillproblemer i Norge 2019. (ekstern lenke)
• Haug, Ellen Merethe Melingen; Robson, Catharina Wold; Helland, Trond et al. (2020). Barn og unges helse og trivsel: Forekomst og sosial ulikhet i Norge og Norden. (ekstern lenke)
• Pallesen, Ståle; Torsheim, Torbjørn; Leino, Tony (2019). Sammenhengen mellom pengespillidelse og rusmisbrukslidelser: Analyse av registerdata.. (ekstern lenke)
• Samdal, Oddrun; Mathisen, Frida Kathrine Sofie; Torsheim, Torbjørn et al. (2016). Helse og trivsel blant barn og unge. Resultater fra den landsrepresentative spørreundersøkelsen «Helsevaner blant skoleelever. En WHO-undersøkelse i flere land». (ekstern lenke)
• Samdal, Oddrun; Bye, Hege Høivik; Torsheim, Torbjørn et al. (2012). Sosial ulikhet i helse og læring blant barn og unge: Resultater fra den landsrepresentative spørreskjemaundersøkelsen ”Helsevaner blant skoleleelver. En WHO-undersøkelse i flere land”. (ekstern lenke)
• Samdal, Oddrun; Leversen, Ingrid; Torsheim, Torbjørn et al. (2009). Trender i helse og livsstil blant barn og unge 1985-2005. Norske resultater fra studien "Helsevaner blant skoleelever. En WHO-undersøkelse i flere land.". (ekstern lenke)
• Torsheim, Torbjørn; Samdal, Oddrun; Wold, Bente et al. (2004). Helse og trivsel blant barn og unge: Norske resultater fra studien "Helsevaner blant skoleelever. En WHO-studie i flere land". (ekstern lenke)
• Torsheim, Torbjørn; Haugland, Siren (2004). Skolemiljø og psykisk helse. (ekstern lenke)
• Wold, Bente; Hetland, Jørn; Aarø, Leif Edvard et al. (2000). Utviklingstrekk i helse og livsstil blant barn og unge fra Norge, Sverige, Ungarn og Wales. (ekstern lenke)
• Torsheim, Torbjørn; Wold, Bente; Currie, Candace (1998). Adolescent coping and health: Sense of coherence. (ekstern lenke)
• Samdal, Oddrun; Wold, Bente; Torsheim, Torbjørn et al. (1998). The relationship between the students' perception of school and their reported health and quality of life. (ekstern lenke)
• Torsheim, Torbjørn; Wold, Bente; Samdal, Oddrun et al. (1997). Test-retest reliability of survey indicators measuring adolescent health and health behaviour. (ekstern lenke)

Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

• Griffiths, Mark D.; Torsheim, Torbjørn; Pallesen, Ståle et al. (2019). Bergen-Yale Sex Addiction Scale. (ekstern lenke)
• Hasselgreen, Angela Maria; Grocott, Craig; Torsheim, Torbjørn (2017). Quality Assurance in the National Tests of English: Investigating What Makes Reading Difficult. (ekstern lenke)
• Samdal, Oddrun; Torsheim, Torbjørn (2012). School as a Resource or Risk to Students’ Subjective Health and Well-Being. (ekstern lenke)
• Torsheim, Torbjørn (2012). Flernivåanalyse-studien av barn i sosial kontekst. (ekstern lenke)
• Samdal, Oddrun; Torsheim, Torbjørn (2009). Kostholdsvaner blant barn og unge. (ekstern lenke)
• Hetland, Jørn; Torsheim, Torbjørn; Aarø, Leif Edvard (2009). Subjektive helseplager i ungdomsårene. (ekstern lenke)
• Knudsmoen, Hege; Holth, Per; Nissen, Poul et al. (2006). Vurdering av program for forebygging av problematferd og utvikling av sosial kompetanse. (ekstern lenke)
• Samdal, Oddrun; Haug, Ellen; Torsheim, Torbjørn et al. (2005). School level influences on physical activity and school meals. (ekstern lenke)
• Haugland, Siren; Torsheim, Torbjørn (2004). Er det sunt å gå på skolen?. (ekstern lenke)
• Torsheim, Torbjørn; Välimaa, Raili; Danielson, Mia (2004). Health and well-being. (ekstern lenke)
• Haugland, Siren; Aarø, Leif Edvard; Torsheim, Torbjørn (2002). Ungdoms somatiske og psykiske plager. (ekstern lenke)
• Torsheim, Torbjørn (1999). Student involvement in school-based health promotion. (ekstern lenke)
• Torsheim, Torbjørn (1999). Elevinvolvering i skolebasert helsefremmende arbeid. (ekstern lenke)
• Hetland, Jørn; Torsheim, Torbjørn; Aarø, Leif Edvard (1997). Subjektive helseplager i ungdomsårene. (ekstern lenke)

Doktorgradsavhandling

• Krossbakken, Elfrid; Torsheim, Torbjørn; Pallesen, Ståle et al. (2019). Personal and Contextual Factors Influencing Gaming Behaviour. Risk factors and prevention of video game addiction. (ekstern lenke)
• Erevik, Eilin K.; Torsheim, Torbjørn; Pallesen, Ståle (2018). User-generated alcohol-related content on social media: Determinants and relation to offline alcohol use . (ekstern lenke)
• Leino, Tony; Molde, Helge; Torsheim, Torbjørn et al. (2018). Structural game characteristics, game features, financial outcomes and gambling behaviour. (ekstern lenke)
• Braatveit, Kirsten; Hove, Oddbjørn; Torsheim, Torbjørn (2018). Intellectual Disability among in-patients with Substance Use Disorders. (ekstern lenke)
• Mellingen, Sonja; Torsheim, Torbjørn (2016). Alkoholbruk, partilfredshet og samlivsstatus. Før, inn i, og etter svangerskapet – korrelater eller konsekvenser?. (ekstern lenke)
• Henriksen, Roger Ekeberg; Thuen, Frode; Torsheim, Torbjørn (2016). Social relationships, stress and infection risk in mother and child. (ekstern lenke)
• Torsheim, Torbjørn (2004). Student role strain and subjective health complaints: individual, contextual and longitudinal perspectives. (ekstern lenke)

Vitenskapelig foredrag

• Leino, Tony; Torsheim, Torbjørn; Molde, Helge et al. (2019). The relationship between SUD and GD: a nationwide longitudinal health registry study. (ekstern lenke)
• Erevik, Eilin K.; Torsheim, Torbjørn; Andreassen, Cecilie Schou et al. (2018). The association between gaming and hazardous alcohol use. (ekstern lenke)
• Leino, Tony; Torsheim, Torbjørn; Pallesen, Ståle et al. (2016). Losses disguised as wins and gambling behavior in EGMs. (ekstern lenke)
• Bjåstad, Jon Fauskanger; Haugland, Bente Storm Mowatt; Fjermestad, Krister et al. (2014). Psychometric evaluation of a measure for adherence/competence for CBT with child anxiety disorders. (ekstern lenke)
• Aarø, Leif Edvard; Mathews, Catherine; Abraham, Charles et al. (2014). Do subjective norms predict attitudes towards condom use prospectively? A study among adolescents in Western Cape, South Africa.. (ekstern lenke)
• Mellingen, Sonja; Torsheim, Torbjørn; Thuen, Frode (2012). Alcohol consumption changes and relationship satisfaction in Norwegian couples in transition to parenthood. (ekstern lenke)
• Hovland, Anders; Sjøbø, Trond; Pallesen, Ståle et al. (2011). Physical exercise compared to cognitive behaviour therapy as a treatment for panic disorder: a randomized controlled trial. Physical exercise compared to cognitive behaviour therapy as a treatment for panic disorder: a randomized controlled trial. (2011, September). In E. W. Martinsen (Chair), Physical exercise in the prevention and treatment of mental disorders. (ekstern lenke)
• Samdal, Oddrun; Haug, Ellen; Torsheim, Torbjørn (2011). The interplay between students’ interest and school facilites and policies to promote student level physical activity. (ekstern lenke)
• Birkeland, Marianne Skogbrott; Torsheim, Torbjørn; Leversen, Ingrid et al. (2011). Patterns of transitions to adulthood. (ekstern lenke)
• Kant, Leo; Einarsen, Ståle; Skogstad, Anders et al. (2010). Abusive leadership and hostile personality. Do Leaders high on trait anger target subordinates low on trait anger?. (ekstern lenke)
• Holth, Per; Taraldsen, K.; Torsheim, Torbjørn (2009). Hvilke krav skal vi stille til god rusbehandling av ungdom i tidlig ruskarriere?. (ekstern lenke)
• Melkevik, Ole; Torsheim, Torbjørn (2007). Latent profile analysis of Diet, Physical Activity and Sedentary Behavior. (ekstern lenke)
• Wold, Bente; Holsen, Ingrid; Torsheim, Torbjørn (2005). Parent / Adolescent Relationship and Depressive Symptoms: a 10-year follow up study. (ekstern lenke)
• Wold, Bente; Birkeland, Marianne Skogbrott; Torsheim, Torbjørn (2005). Depression and physical activity: a 10 year longitudinal study from 13 to 23 years of age. (ekstern lenke)
• Samdal, Oddrun; Wold, Bente; Torsheim, Torbjørn (2004). The impact of student autonomy on students' satisfaction with school. (ekstern lenke)
• Torsheim, Torbjørn; Wold, Bente; Samdal, Oddrun (2001). Transforming pupils' priorities into planned intervention in schools: the interactive effects of pupil-teacher communication and collective efficacy. (ekstern lenke)
• Torsheim, Torbjørn; Currie, Candace; Haugland, Siren (2001). SES gradients in adolescent self-rated health: the role of family affluence. (ekstern lenke)
• Torsheim, Torbjørn (2001). Sense of Coherence, Schoolrelated stress, and subjective health complaints in mid-adolescence. (ekstern lenke)
• Haugland, Siren; Torsheim, Torbjørn (2001). Perceived family wealth and adolescent health complaints. (ekstern lenke)
• Wold, Bente; Torsheim, Torbjørn; Currie, Candace et al. (2000). Adolescent exposure to smoking in school: the significance of national and local differences in school smoking restrictions. (ekstern lenke)
• Torsheim, Torbjørn (2000). Student involvement in planning and implementation of school-based health promotion activities: a longitudinal quantitative analysis. (ekstern lenke)
• Torsheim, Torbjørn (2000). Psychometric evaluation of the Positive Health/School environment piloting scales. (ekstern lenke)
• Torsheim, Torbjørn (2000). Contextual influence on adolescent well-being: main and moderating effects of shared school-class environment. (ekstern lenke)
• Samdal, Oddrun; Torsheim, Torbjørn (2000). Individual and school related resources as correlates of domain-specific versus global life satisfaction. (ekstern lenke)
• Wold, Bente; Torsheim, Torbjørn; Roberts, Chris et al. (1999). Observational learning and subjective norms: the effect of being exposed to smokers in school. (ekstern lenke)
• Torsheim, Torbjørn; Wold, Bente (1999). The relationship between sense of coherence and subjective health complaints among early adolescents. (ekstern lenke)
• Torsheim, Torbjørn; Wold, Bente (1999). School-related social support and subjective health complaints: moderation by gender?. (ekstern lenke)
• Samdal, Oddrun; Wold, Bente; Aarø, Leif Edvard et al. (1999). The psychosocial school environment as a resource for students' subjective well-being. (ekstern lenke)
• Torsheim, Torbjørn; Wold, Bente (1998). Academic stress and somatic complaints among early adolescents: Sense of coherence as a potential moderator. (ekstern lenke)
• Torsheim, Torbjørn; Wold, Bente (1998). Psychosocial conditions at school and academic stress in early adolescence: findings from a crossnational study. (ekstern lenke)
• Wold, Bente; Candace, Currie; Torsheim, Torbjørn et al. (1998). Measuring lifestyles and health among adolescents: a cross-cultural perspective. (ekstern lenke)
• Torsheim, Torbjørn (1997). Subjektive helseplager blant ungdom - en markør for sosial belastning?. (ekstern lenke)

Poster

• Leino, Tony; Torsheim, Torbjørn; Griffiths, Mark D. et al. (2019). The relationship between gambling disorder and substance use disorder: A nationwide longitudinal register study . (ekstern lenke)
• Leino, Tony; Torsheim, Torbjørn; Blaszczynski, Alex et al. (2014). The relationship between structural game characteristics and gambling behaviour: A population-level study. (ekstern lenke)
• Bjåstad, Jon Fauskanger; Haugland, Bente Storm Mowatt; Fjermestad, Krister et al. (2014). Psychometric evaluation of a measure for adherence/competence for CBT with child anxiety disorders. (ekstern lenke)
• Kant, Leo; Skogstad, Anders; Torsheim, Torbjørn et al. (2010). Antecedents of abusive supervision at sea: the role of trait anger and trait anxiety. (ekstern lenke)
• Wold, Bente; Torsheim, Torbjørn; Currie, Candace et al. (2002). The effect of national tobacco control policies on school smoking restrictions and student smoking. (ekstern lenke)
• Wold, Bente; Torsheim, Torbjørn; Currie, Candace et al. (2000). National tobacco policies and adolescent smoking: the significance of cultural differences in school smoking restrictions. (ekstern lenke)
• Hetland, Jørn; Torsheim, Torbjørn; Aarø, Leif Edvard (2000). Subjective health complaints in adolescence: Dimensional structure and variation across gender and age. (ekstern lenke)
• Samdal, Oddrun; Aarø, Leif Edvard; Torsheim, Torbjørn et al. (2000). The school environment as a resource for the subjective well-being of students. (ekstern lenke)

Short communication

• Griffiths, Mark D.; Andreassen, Cecilie Schou; Pallesen, Ståle et al. (2016). When is a new Scale not a new scale? The case of the Bergen Shopping Addiction Scale and the Compulsive Online Shopping Scale. (ekstern lenke)

Vitenskapelig oversiktsartikkel/review

• Ottová-Jordan, Veronika; Smith, Otto Robert Frans; Augustine, Lilly et al. (2015). Trends in health complaints from 2002 to 2010 in 34 countries and their association with health behaviours and social context factors at individual and macro-level. (ekstern lenke)
• Ottová-Jordan, Veronika; Smith, Otto Robert Frans; Gobina, Inese et al. (2015). Trends in multiple recurrent health complaints in 15-year-olds in 35 countries in Europe, North America and Israel from 1994 to 2010. (ekstern lenke)
• Sagoe, Dominic; Molde, Helge; Andreassen, Cecilie Schou et al. (2014). The global epidemiology of anabolic-androgenic steroid use: a meta-analysis and meta-regression analysis. (ekstern lenke)

Faglig foredrag

• Sagoe, Dominic; Molde, Helge; Andreassen, Cecilie Schou et al. (2014). The global epidemiology of anabolic-androgenic steroid use. (ekstern lenke)

Sammendrag/abstract

• Henriksen, Roger Ekeberg; Thuen, Frode; Torsheim, Torbjørn (2013). Does relationship satisfaction protect against physical diseases in pregnancy?. (ekstern lenke)
• Levin, K; Torsheim, Torbjørn; Vollebergh, Wilma et al. (2011). National income and income inequality, family affluence and life satisfaction among adolescents in 35 countries. (ekstern lenke)

Mastergradsoppgave

• Kayeyi, Nkomba; Torsheim, Torbjørn (2006). Predicting intention to postpone sexual debut among school going adolescents (13-14 years) in Polokwane, South Africa. (ekstern lenke)
• Vetvik, Ingrid; Torsheim, Torbjørn (2005). Can self-efficacy be a moderator in the relationship between socioeconomic status and physical activity?. (ekstern lenke)
• Ulveseter, Grethe; Torsheim, Torbjørn (2005). Sosial ulikhet i helse blant ungdom. Kan valg av indikator på sosioøkonomisk status ha betydning for hvilke helseeffekter som avdekkes?. (ekstern lenke)
• Hauger, Elsi C. Kolding; Torsheim, Torbjørn (2005). Subjektive helseplager; Livsstil eller manglende mestring?. (ekstern lenke)

Hovedfagsoppgave

• Jordal, Kristin; Torsheim, Torbjørn (2005). Betydningen av skolerelatert stress for subjektive helseplager, røyking og alkoholbruk blant skoleungdom i Norge. (ekstern lenke)

Annet

• Kjønniksen, Lise; Wold, Bente; Torsheim, Torbjørn (2005). The influence of organised physical activities in childhood : a 10 year longitudinal study from 13 to 23 years of age. (ekstern lenke)
• Torsheim, Torbjørn; Samdal, Oddrun; Danielson, Mia et al. (2002). Positive Health. (ekstern lenke)
• Samdal, Oddrun; Torsheim, Torbjørn; Danielson, Mia et al. (2002). School Setting. (ekstern lenke)

Populærvitenskapelig foredrag

• Torsheim, Torbjørn (1999). Psychosocial school environment and adolescent well-being: a multilevel modeling approach. (ekstern lenke)
• Torsheim, Torbjørn (1998). Academic stress and subjective health complaints: Sense of coherence as a potential mediator of effects. (ekstern lenke)
• Torsheim, Torbjørn; Wold, Bente (1998). The Sense of Coherence Scale (SOC-13): What does it measure?. (ekstern lenke)

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