Media feature article

• Anne-Siri Fismen; Jens Christoffer Skogen; Catharina Wold Robson et al. (2026). forebygging.no - Kan man tilnærme seg ungdoms kropp og kroppsbilde på en helsefremmende måte?. (external link)
• Trond Helland; Ellen Merethe Melingen Haug; Oddrun Samdal et al. (2025). Skjermpanikk hjelper ingen. (external link)
• Trond Helland; Ellen Merethe Melingen Haug; Oddrun Samdal et al. (2025). Barns psykiske helse – vår felles fremtid. (external link)

Conference poster

• Anne-Siri Fismen; Arnfinn Helleve; Oddrun Samdal et al. (2021). Cross-national variation of the association between family structure and BMI: findings from the Health Behaviour in School-aged Children (HBSC) study. (external link)

Academic article

• Oddrun Samdal; Isabelle Sylvie Budin Ljøsne; Ellen Merethe Melingen Haug et al. (2023). Encouraging greater empowerment for adolescents in consent procedures in social science research and policy projects. (external link)
• Pia Jensen; Ellen Merethe Melingen Haug; Børge Sivertsen et al. (2021). Satisfaction With Life, Mental Health Problems and Potential Alcohol-Related Problems Among Norwegian University Students. (external link)
• Sofie Riddervold; Ellen Merethe Melingen Haug; Sara Madeleine Kristensen (2023). Sports participation, body appreciation and life satisfaction in Norwegian adolescents: A moderated mediation analysis. (external link)
• Sara Madeleine Kristensen; Magnus Jørgensen; Ellen Merethe Melingen Haug (2024). I want to play a game: Examining sex differences in the effects of pathological gaming, academic self-efficacy, and academic initiative on academic performance in adolescence. (external link)
• Ellen Haug; Torbjørn Torsheim; Oddrun Samdal (2010). Local school policies increase physical activity in Norwegian secondary schools. (external link)
• Silvia Eiken Alpers; Ståle Pallesen; Jørn Henrik Vold et al. (2023). The association between psychological distress and alcohol consumption and physical activity: a population-based cohort study. (external link)
• Magnus Jørgensen; Otto Robert Frans Smith; Bente Wold et al. (2023). Tracking of depressed mood from adolescence into adulthood and the role of peer and parental support: A partial test of the Adolescent Pathway Model. (external link)
• Ellen Merethe Melingen Haug; Isabel Castillo; Oddrun Samdal et al. (2023). Body-related concerns and participation in physical education among adolescent students: the mediating role of motivation. (external link)
• Erling Andre Algrøy; Oddrun Samdal; Ellen Merethe Melingen Haug (2022). An investigation of the implementation of obligatory physical activity classes for 5th-7th grade in Norway. (external link)
• Disa Kristina Tell; Olin Blaalid Oldeide; Torill Marie Bogsnes Larsen et al. (2022). Lessons Learned from an Intersectoral Collaboration between the Public Sector, NGOs, and Sports Clubs to Meet the Needs of Vulnerable Youths. (external link)
• Regina Hamre; Robert Smith; Oddrun Samdal et al. (2022). Gaming Behaviors and the Association with Sleep Duration, Social Jetlag, and Difficulties Falling Asleep among Norwegian Adolescents. (external link)
• Ragnhild Bjørknes; Gro Mjeldheim Sandal; Silje Mæland et al. (2021). ‘We are unlikely to return to the same world, and I do not want it to destroy my future.’ Young people's worries through the outbreak of the COVID-19 pandemic. (external link)
• Catherina Brindley; Zdenek Hamrik; Dorota Kleszczewska et al. (2023). Gender-specific social and environmental correlates of active travel to school in four European countries: the HBSC Study. (external link)
• Ronald J Iannotti; Rusan Chen; Hanna Kololo et al. (2013). Motivations for adolescent participation in leisure-time physical activity : international differences. (external link)
• Magnus Jørgensen; Bente Wold; Otto Robert Frans Smith et al. (2025). Socioeconomic differences in adolescent health behaviors and their effect on inequalities in adult depressed mood: findings from a 27-year longitudinal study. (external link)
• Ellen Merethe Melingen Haug; Otto Robert Frans Smith; Jens Bucksch et al. (2021). 12-year trends in active school transport across four european countries—findings from the health behaviour in school-aged children (Hbsc) study. (external link)
• Ellen Merethe Melingen Haug (2024). Adolescents’ screen-based media use and the relationship with moderate-to-vigorous physical activity, sports club participation and active commuting. (external link)
• Ellen Haug; Torbjørn Torsheim; Oddrun Samdal (2008). Physical environmental characteristics and individual interests as correlates of physical activity in Norwegian secondary schools: The health behaviour in school-aged children study. (external link)
• Otto Robert Frans Smith; Daniele Evelin Alves; Marit Knapstad et al. (2017). Measuring mental well-being in Norway: validation of the Warwick-Edinburgh Mental Well-being Scale (WEMWBS). (external link)
• Ronald J Iannotti; Ian Janssen; Ellen Haug et al. (2009). Interrelationships of adolescent physical activity, screen-based sedentary behaviour, and social and psychological health. (external link)
• Otto Robert Frans Smith; Solbjørg Makalani Myrtveit Sæther; Ellen Merethe Melingen Haug et al. (2022). Long-term outcomes at 24- and 36-month follow-up in the intervention arm of the randomized controlled trial of Prompt Mental Health Care. (external link)
• Bente Wold; Joan L. Duda; Isabel Balaguer et al. (2013). Comparing self-reported leisure-time physical activity, subjective health, and life satisfaction among youth soccer players and adolescents in a reference sample. (external link)
• Athanasios Papaioannou; Paul R. Appleton; Miquel Torregrosa et al. (2013). Moderate-to-vigorous physical activity and personal well-being in European youth soccer players: Invariance of physical activity, global self-esteem and vitality across five countries. (external link)
• Bjarte Birkeland Kysnes; Gunnhild Johnsen Hjetland; Ellen Merethe Melingen Haug et al. (2022). The association between sharing something difficult on social media and mental well-being among adolescents. Results from the “LifeOnSoMe”-study. (external link)
• Amund Langøy; Otto Robert Frans Smith; Bente Wold et al. (2019). Associations between family structure and young people's physical activity and screen time behaviors. (external link)
• Oddrun Samdal; Hege Høivik Bye; Torbjørn Torsheim et al. (2012). Trender i sosial ulikhet i helseatferd. (external link)
• Anne-Siri Fismen; Otto Robert Frans Smith; Oddrun Samdal et al. (2020). Associations between family structure and adolescents' food habits. (external link)
• Siv Gjesdal; Ellen Haug; Yngvar Ommundsen (2018). A Conditional Process Analysis of the Coach-Created Mastery Climate, Task Goal Orientation, and Competence Satisfaction in Youth Soccer: The Moderating Role of Controlling Coach Behavior. (external link)
• Ellen Haug; Torbjørn Torsheim; James F. Sallis et al. (2010). The characteristics of the outdoor school environment associated with physical activity. (external link)
• Joan L. Duda; Eleanor Quested; Ellen Haug et al. (2013). Promoting Adolescent health through an intervention aimed at improving the quality of their participation in Physical Activity (PAPA): Background to the project and main trial protocol. (external link)
• Ellen Haug; Mette Rasmussen; Oddrun Samdal et al. (2009). Overweight in school-aged children and its relationship with demographic and lifestyle factors: results from the WHO-Collaborative Health Behaviour in School-aged Children (HBSC) Study. (external link)
• Ellen Merethe Melingen Haug; Otto Robert Frans Smith; Kwok Ng et al. (2024). Family structure and the association with physical activity-Findings from 40 countries participating in the Health Behaviour in School-aged Children (HBSC) study. (external link)
• Ellen Merethe Melingen Haug; Mathilde Rønnestad; Otto Robert Frans Smith (2024). Physical activity, problematic gaming behavior, and quality of life prior and during the first 9 months of the COVID-19 pandemic: Findings from a longitudinal study among university students. (external link)
• Stine Lehmann; Ellen Merethe Melingen Haug; Ragnhild Bjørknes et al. (2022). Quality of life among young people in Norway during the COVID‑19 pandemic. A longitudinal study. (external link)
• Oda Lekve Brandseth; Malin Torstveit Håvarstein; Helga Bjørnøy Urke et al. (2019). Mental well-being among students in Norwegian upper secondary schools: the role of teacher support and class belonging. (external link)
• Amund Langøy; Åge Røssing Diseth; Bente Wold et al. (2024). Autonomy support, basic needs satisfaction, and involvement in physical education among Norwegian secondary school students. (external link)
• Magnus Jørgensen; Otto Robert Frans Smith; Bente Wold et al. (2024). Social inequality in the association between life transitions into adulthood and depressed mood: a 27-year longitudinal study. (external link)
• Stine Lehmann; Jens Christoffer Skogen; Ellen Haug et al. (2021). Perceived consequences and worries among youth in Norway during the COVID-19 pandemic lockdown. (external link)
• Bård Erlend Solstad; Andreas Ivarsson; Ellen Haug et al. (2018). Youth Sport Coaches’ Well-Being Across the Season: The Psychological Costs and Benefits of Giving Empowering and Disempowering Sports Coaching to Athletes. (external link)
• Anne-Siri Fismen; Otto Robert Frans Smith; Arnfinn Helleve et al. (2022). Cross-national variation in the association between family structure and overweight and obesity: Findings from the Health Behaviour in School-aged children (HBSC) study. (external link)
• Eleanor Quested; Nikos Ntoumanis; Carme Viladrich et al. (2013). Intentions to drop-out of youth soccer: A test of the basic needs theory among European youth from five countries. (external link)
• Otto Robert Frans Smith; Ole Melkevik; Oddrun Samdal et al. (2017). Psychometric properties of the five-item version of the Mindful Awareness Attention Scale (MAAS) in Norwegian adolescents. (external link)
• Catharina Wold Robson; Anne-Siri Fismen; Jens Christoffer Skogen et al. (2025). Secular trends in body weight perception among Norwegian adolescents: a 28-year cross-sectional analysis (1994–2022). (external link)
• Ole Melkevik; Ellen Haug; Mette Rasmussen et al. (2015). Are associations between electronic media use and BMI different across levels of physical activity?. (external link)
• Rachana Aryal; Gunnhild Johnsen Hjetland; Ellen Merethe Melingen Haug et al. (2025). Online Personas: Associations Between Focus on Self-Presentation and Social Comparison on Social Media and Mental Well-Being in Early Adolescence. (external link)
• Stine Lehmann; Jens Christoffer Skogen; Gro Mjeldheim Sandal et al. (2022). Emerging mental health problems during the COVID-19 pandemic among presumably resilient youth -a 9-month follow-up. (external link)
• Ellen Merethe Melingen Haug; Silje Mæland; Stine Lehmann et al. (2022). Increased Gaming During COVID-19 Predicts Physical Inactivity Among Youth in Norway—A Two-Wave Longitudinal Cohort Study. (external link)
• Ragnhild Bjørknes; Jens Christoffer Skogen; Ane Nærde et al. (2022). Parental stress during the COVID-19 pandemic: A one-year follow-up. (external link)
• Stine Lehmann; Jens Christoffer Skogen; Gro Mjeldheim Sandal et al. (2024). Stress and coping strategies among youth during the COVID-19 pandemic: a population-based cohort study. (external link)

Research report

• Ellen Merethe Melingen Haug; Catharina Wold Robson; Trond Helland et al. (2020). Barn og unges helse og trivsel: Forekomst og sosial ulikhet i Norge og Norden. (external link)
• Oddrun Samdal; Maria Coral Falco Perez; Anne-Siri Fismen et al. (2024). Trender i barn og unges helsevaner og trivsel. Helsevaner blant skoleelever - en flernasjonal undersøkelse (HEVAS). Norske data fra 1983-2022.. (external link)
• Oddrun Samdal; Ellen Haug; Fredrik Hansen et al. (2006). Evalueringsrapport Fysisk aktivitet og måltider. (external link)
• Oddrun Samdal; Ellen Haug; Hilde Slåtten et al. (2008). Evalueringsrapport II: Fysisk aktivitet og måltider. (external link)
• Sverre Mæhlum; Arvid Heiberg; Arne Fagerli et al. (2004). Fysisk aktivitet for mennesker med funksjonsnedsettelser;anbefalinger. (external link)
• Oddrun Samdal; Hege Høivik Bye; Torbjørn Torsheim 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”. (external link)

Academic literature review

• Namanjeet Ahluwalia; Paola Dalmasso; Mette Rasmussen et al. (2015). Trends in overweight prevalence among 11-, 13- and 15-year-olds in 25 countries in Europe, Canada and USA from 2002 to 2010. (external link)
• Michal Kalman; Jo Inchley; Dagmar Sigmundova et al. (2015). Secular trends in moderate-to-vigorous physical activity in 32 countries from 2002 to 2010: A cross-national perspective. (external link)

Academic book chapter

• Ellen Haug; Siren Haugland (2009). Fysisk aktivitet. (external link)
• Oddrun Samdal; Ellen Haug; Torbjørn Torsheim et al. (2005). School level influences on physical activity and school meals. (external link)
• Oddrun Samdal; Ellen Haug (2010). Betydningen av et sunt kosthold og fysisk aktivitet for helse og læring. (external link)
• Siren Haugland; Ellen Haug (2012). Fysisk aktivitet i forbygging og behandling av overvekt. (external link)

Conference lecture

• Oddrun Samdal; Ellen Haug; Torbjørn Torsheim (2011). The interplay between students’ interest and school facilites and policies to promote student level physical activity. (external link)
• Ellen Merethe Melingen Haug; Robert Smith; Bente Wold (2023). Depressed mood from early adolescence to mid-adulthood: A life course perspective focused on social inequality, gender, and the role of adolescent pathways.. (external link)
• Amund Langøy; Ellen Haug (2016). Family structure and physical activity. (external link)

Doctoral thesis (PhD)

• Ellen Haug (2008). Multilevel correlates of physical activity in the school setting. (external link)

Lecture

• Oddrun Samdal; Ellen Haug (2004). Evaluering av fysisk aktivitet og måltider i skolen. (external link)
• Oddrun Samdal; Ellen Haug (2004). Fysisk aktivitet og måltider i skolen : Målsetting og forventninger om resultat. (external link)

Professional article

• Torill M.B. Larsen; Oddrun Samdal; Ellen Haug (2007). Hovedresultater fra :Fysisk aktivitet og måltider i skolen. (external link)

See a complete overview of publications in NVA.