2025

• Greger, Hanne Klæboe; Kayed, Nanna Sønnichsen; Lehmann, Stine; Jozefiak, Thomas; Lydersen, Stian; Wichstrøm, Lars. (2025) Prevalence and comorbidity of mental disorders among young adults with a history of residential youth care – a two-wave longitudinal study of stability and change. European Archives of Psychiatry and Clinical Neuroscience
  Vitenskapelig artikkel

2024

• Greger, Hanne Klæboe; Stuifbergen, Maria Catherina; Jozefiak, Thomas; Kayed, Nanna Sønnichsen; Lydersen, Stian; Rimehaug, Tormod. (2024) Young Adults with a History of Residential Youth Care: A Cohort Profile of a Hard-to-Reach Population. International Journal of Environmental Research and Public Health (IJERPH)
  Vitenskapelig artikkel
• Schalinski, Inga; Jozefiak, Thomas; Stenzel, Nikola; Breinlinger, Susanne; Teicher, Martin H.; Rockstroh, Brigitte. (2024) Childhood maltreatment in patients with mental illness as a risk factor for obesity. Psychiatry Research
  Vitenskapelig artikkel
• Ranøyen, Ingunn; Wallander, Jan; Lydersen, Stian; Thomsen, Per; Jozefiak, Thomas. (2024) Promotive factors associated with reduced anxiety and depression across three years in a prospective clinical cohort of adolescents: Examining compensatory and protective models of resilience. Development and Psychopathology
  Vitenskapelig artikkel

2023

• Aanondsen, Chris Margaret; Jozefiak, Thomas; Lydersen, Stian; Heiling, Kerstin; Rimehaug, Tormod. (2023) Deaf and hard-of-hearing children and adolescents’ mental health, Quality of Life and communication. BMC Psychiatry
  Vitenskapelig artikkel

2022

• Jozefiak, Thomas; Wallander, Jan Lance Anders; Lydersen, Stian. (2022) Change Over 11–13 Year Periods in Quality of Life, Emotional Problems and Negative Stressful Life Events Among 13–17 Year Old Students. Child Psychiatry and Human Development
  Vitenskapelig artikkel
• Stensen, Kenneth; Jozefiak, Thomas; Lydersen, Stian. (2022) Psychometric properties of the caregiver-teacher report form in a sample of Norwegian preschool children. Nordic Journal of Psychiatry
  Vitenskapelig artikkel
• Reindal, Lise; Brøndbo, Per Håkan; Jozefiak, Thomas. (2022) Måleegenskaper ved den norske versjonen av The Children’s Communication Checklist - Second Edition (CCC-2). PsykTestBarn
  Vitenskapelig oversiktsartikkel/review

2021

• Neumer, Simon-Peter; Jozefiak, Thomas; Reedtz, Charlotte; Stormark, Kjell Morten; Martinussen, Monica. (2021) Strengere krav til tester. Det bør stilles strengere kvalitetskrav til tester som brukes for barn og unge i Norge. Tidsskrift for Norsk psykologforening (Psykologtidsskriftet)
  Leserinnlegg
• Seim, Astrid Røsland; Jozefiak, Thomas; Wichstrøm, Lars; Lydersen, Stian; Kayed, Nanna Sønnichsen. (2021) Self-esteem in adolescents with reactive attachment disorder or disinhibited social engagement disorder. International Journal of Child Abuse & Neglect
  Vitenskapelig artikkel
• Aanondsen, Chris Margaret; Jozefiak, Thomas; Heiling, Kerstin; Lydersen, Stian; Rimehaug, Tormod. (2021) Psychometric properties of the Inventory of Life Quality in children and adolescents in Norwegian Sign Language. BMC Psychology
  Vitenskapelig artikkel
• Pedersen, Marit Løtveit; Jozefiak, Thomas; Sund, Anne Mari; Holen, Solveig; Neumer, Simon-Peter; Martinsen, Kristin D.. (2021) Psychometric properties of the Brief Problem Monitor (BPM) in children with internalizing symptoms: examining baseline data from a national randomized controlled intervention study. BMC Psychology
  Vitenskapelig artikkel
• Kaasbøll, Jannike; Jozefiak, Thomas; Aanondsen, Chris Margaret. (2021) Måleegenskaper ved den norske versjonen av Social Communication Questionnaire (SCQ). PsykTestBarn
  Vitenskapelig oversiktsartikkel/review

2020

• Seim, Astrid Røsland; Jozefiak, Thomas; Wichstrøm, Lars; Lydersen, Stian; Kayed, Nanna Sønnichsen. (2020) Reactive attachment disorder and disinhibited social engagement disorder in adolescence: co-occurring psychopathology and psychosocial problems . European Child and Adolescent Psychiatry
  Vitenskapelig artikkel
• Fosse, Roar; Skjelstad, Dag Vegard; Schalinski, Inga; Thekkumthala, Dorothea; Elbert, Thomas; Aanondsen, Chris Margaret. (2020) Measuring childhood maltreatment: Psychometric properties of the Norwegian version of the Maltreatment and Abuse Chronology of Exposure (MACE) scale. PLOS ONE
  Vitenskapelig artikkel
• Brattfjell, Maria Larsen; Jozefiak, Thomas; Wichstrøm, Lars. (2020) Predictors of community versus specialty mental health service use: a prospective cohort study. European Child and Adolescent Psychiatry
  Vitenskapelig artikkel

2019

• Jozefiak, Thomas; Greger, Hanne Klæboe; Koot, Hans M.; Kløckner, Christian; Wallander, Jan Lance Anders. (2019) The role of family functioning and self-esteem in the quality of life of adolescents referred for psychiatric services: a 3-year follow-up. Quality of Life Research
  Vitenskapelig artikkel
• Aanondsen, Chris Margaret; Jozefiak, Thomas; Heiling, Kerstin; Rimehaug, Tormod. (2019) Validation of the Strengths and Difficulties Self-Report in Norwegian Sign Language. Journal of Deaf Studies and Deaf Education
  Vitenskapelig artikkel
• Jozefiak, Thomas; Backer-Grøndahl, Agathe. (2019) Måleegenskaper ved den norske versjonen av Self-Perception Profile for Adolescents (SPPA). PsykTestBarn
  Vitenskapelig artikkel
• Seim, Astrid Røsland; Jozefiak, Thomas; Wichstrøm, Lars; Kayed, Nanna Sønnichsen. (2019) Validity of reactive attachment disorder and disinhibited social engagement disorder in adolescence. European Child and Adolescent Psychiatry
  Vitenskapelig artikkel
• Greger, Hanne Klæboe; Myhre, Arne Kristian; Lydersen, Stian; Jozefiak, Thomas. (2019) Corrigendum to “Previous maltreatment and present mental health in a high-risk adolescent population” (Previous maltreatment and present mental health in a high-risk adolescent population (2015) 45 (122–134), (S014521341500160X) (10.1016/j.chiabu.2015.05.003)). International Journal of Child Abuse & Neglect
  Errata

2018

• Aanondsen, Chris Margaret; Heiling, Kerstin; Nøvik, Torunn Stene; Jozefiak, Thomas. (2018) Quality of Life, family function and mental health of deaf and hard-of-hearing adolescents in mental health services in Norway - a pilot study. International Journal on Mental Health and Deafness
  Vitenskapelig artikkel
• Jozefiak, Thomas; Hanssen-Bauer, Ketil; Bjelland, Ingvar. (2018) Måleegenskaper ved den norske versjonen av Children’s Global Assessment Scale (CGAS). PsykTestBarn
  Vitenskapelig oversiktsartikkel/review
• Paap, Muirne C. S.; Martinussen, Monica; Jakobsen, Reidar; Jozefiak, Thomas; Axelsdottir, Brynhildur; Neumer, Simon-Peter. (2018) Tester for barn og unge i Norge bør kvalitets­sikres bedre. Psykologisk.no – Scandinavian Psychologist
  Fagartikkel

2017

• Greger, Hanne Klæboe; Myhre, Arne Kristian; Kløckner, Christian; Jozefiak, Thomas. (2017) Childhood maltreatment, psychopathology and well-being: The mediator role of global self-esteem, attachment difficulties and substance use. International Journal of Child Abuse & Neglect
  Vitenskapelig artikkel
• Jozefiak, Thomas; Kayed, Nanna Sønnichsen; Ranøyen, Ingunn; Greger, Hanne Klæboe; Wallander, Jan Lance; Wichstrøm, Lars. (2017) Quality of life among adolescents living in residential youth care:do domain-specific self-esteem and psychopathology contribute?. Quality of Life Research
  Vitenskapelig artikkel

2016

• Schei, Jorun; Jozefiak, Thomas; Nøvik, Torunn Stene; Lydersen, Stian; Indredavik, Marit Sæbø. (2016) The Impact of Coexisting Emotional and Conduct Problems on Family Functioning and Quality of Life Among Adolescents With ADHD. Journal of Attention Disorders
  Vitenskapelig artikkel
• Greger, Hanne Klæboe; Myhre, Arne Kristian; Lydersen, Stian; Jozefiak, Thomas. (2016) Child maltreatment and quality of life: A study of adolescents in residential care. Health and Quality of Life Outcomes
  Vitenskapelig artikkel
• Jozefiak, Thomas; Berg-Nielsen, Turid Suzanne. (2016) Måleegenskaper ved den norske versjonen av Child and Adolescent Psychiatric Assessment (CAPA) og Preschool Age Psychiatric Assessment (PAPA). PsykTestBarn
  Vitenskapelig oversiktsartikkel/review
• Larsson, Bo Sture; Ingul, Jo Magne; Jozefiak, Thomas; Leikanger, Einar; Sund, Anne Mari. (2016) Prevalence, stability, 1-year incidence and predictors of depressive symptoms among Norwegian adolescents in the general population as measured by the Short Mood and Feelings Questionnaire. Nordic Journal of Psychiatry
  Vitenskapelig artikkel

2015

• Solberg, Cathrine; Larsson, Bo Sture; Jozefiak, Thomas. (2015) Consumer satisfaction with the Child and Adolescent Mental Health Service and its association with treatment outcome: A 3-4-year follow-up study. Nordic Journal of Psychiatry
  Vitenskapelig artikkel
• Ranøyen, Ingunn; Stenseng, Frode; Kløckner, Christian; Wallander, Jan Lance; Jozefiak, Thomas. (2015) Familial aggregation of anxiety and depression in the community: the role of adolescents’ self-esteem and physical activity level (the HUNT Study). BMC Public Health
  Vitenskapelig artikkel
• Jozefiak, Thomas; Wallander, Jan Lance. (2015) Perceived family functioning, adolescent psychopathology and quality of life in the general population: a 6-month follow-up study. Quality of Life Research
  Vitenskapelig artikkel
• Schei, Jorun; Nøvik, Torunn Stene; Thomsen, Per Hove; Lydersen, Stian; Indredavik, Marit Sæbø; Jozefiak, Thomas. (2015) What predicts a good adolescent to adult transition in ADHD? The role of self-reported resilience. Journal of Attention Disorders
  Vitenskapelig artikkel
• Jozefiak, Thomas; Kayed, Nanna Sønnichsen; Rimehaug, Tormod; Wormdal, Anne Kristine; Brubakk, Ann-Mari; Wichstrøm, Lars. (2015) Prevalence and comorbidity of mental disorders among adolescents living in residential youth care. European Child and Adolescent Psychiatry
  Vitenskapelig artikkel
• Jozefiak, Thomas; Tollefsen, Thomas Kristian. (2015) Måleegenskaper ved den norske versjonen av Child Health Questionnaire (CHQ). PsykTestBarn
  Vitenskapelig oversiktsartikkel/review
• Kornør, Hege; Jozefiak, Thomas; Hanssen-Bauer, Ketil; Hysing, Mari. (2015) Forsvarlig testbruk. Tidsskrift for Norsk psykologforening (Psykologtidsskriftet)
  Vitenskapelig oversiktsartikkel/review
• Jozefiak, Thomas; Kayed, Nanna Sønnichsen. (2015) Self- and proxy reports of quality of life among adolescents living in residential youth care compared to adolescents in the general population and mental health services. Health and Quality of Life Outcomes
  Vitenskapelig artikkel
• Greger, Hanne Klæboe; Myhre, Arne Kristian; Lydersen, Stian; Jozefiak, Thomas. (2015) Previous maltreatment and present mental health in a high-risk adolescent population. International Journal of Child Abuse & Neglect
  Vitenskapelig artikkel
• Kayed, Nanna Sønnichsen; Jozefiak, Thomas; Rimehaug, Tormod; Tjelflaat, Torill; Brubakk, Ann-Mari; Wichstrøm, Lars. (2015) Psykisk helse hos barn og unge i barneverninstitusjoner. RKBU Midt-Norge, NTNU
  Rapport
• Schei, Jorun; Nøvik, Torunn Stene; Thomsen, Per Hove; Indredavik, Marit Sæbø; Jozefiak, Thomas. (2015) Improved quality of life among adolescents with attention-deficit/hyperactivity disorder is mediated by protective factors: A cross sectional survey. BMC Psychiatry
  Vitenskapelig artikkel

2014

• Weidle, Bernhard; Ivarsson, Tord; Thomsen, Per Hove; Lydersen, Stian; Jozefiak, Thomas. (2014) Quality of life in children with OCD before and after treatment. European Child and Adolescent Psychiatry
  Vitenskapelig artikkel
• Holte, Arne; Barry, Margaret M.; Bekkhus, Mona; Borge, Anne Inger Helmen; Bowes, Lucy; Casas, Ferran. (2014) Psychology of Child Well-Being. Springer
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Wichstrøm, Lars; Belsky, Jay; Jozefiak, Thomas; Sourander, Andre; Berg-Nielsen, Turid Suzanne. (2014) Predicting Service Use for Mental Health Problems Among Young Children. Pediatrics
  Vitenskapelig artikkel
• Ranøyen, Ingunn; Jozefiak, Thomas; Wallander, Jan Lance; Lydersen, Stian; Indredavik, Marit Sæbø. (2014) Self-reported social anxiety symptoms and correlates in a clinical (CAP) and a community (Young-HUNT) adolescent sample. Social Psychiatry and Psychiatric Epidemiology
  Vitenskapelig artikkel
• Ranøyen, Ingunn; Kløckner, Christian; Wallander, Jan Lance; Jozefiak, Thomas. (2014) Associations between internalizing problems in adolescent daughters versus sons and mental health problems in mothers versus fathers (The HUNT Study). Journal of Child and Family Studies
  Vitenskapelig artikkel
• Nøvik, Torunn Stene; Jozefiak, Thomas. (2014) Sixteen-year comparisons of parent-reported emotional and behaviour problems and competencies in Norwegian children aged 7-9 years. Nordic Journal of Psychiatry
  Vitenskapelig artikkel
• Weidle, Bernhard; Ivarsson, Tord; Thomsen, Per Hove; Jozefiak, Thomas. (2014) Quality of life in children with OCD with and without comorbidity. Health and Quality of Life Outcomes
  Vitenskapelig artikkel

2013

• Greger, Hanne Klæboe; Jozefiak, Thomas; Myhre, Arne Kristian. (2013) Child abuse management units: How can mental health services be further improved?. Scandinavian Journal of Child and Adolescent Psychiatry and Psychology
  Vitenskapelig artikkel
• Schei, Jorun; Jozefiak, Thomas; Nøvik, Torunn Stene; Lydersen, Stian; Indredavik, Marit Sæbø. (2013) The Impact of Coexisting Emotional and Conduct Problems on Family Functioning and Quality of Life Among Adolescents With ADHD. Journal of Attention Disorders
  Vitenskapelig artikkel
• Stødle, Einar S.; Jozefiak, Thomas. (2013) Does School Functioning Matter in Patients of Child and Adolescent Mental Health Services?. Scandinavian Journal of Child and Adolescent Psychiatry and Psychology
  Vitenskapelig artikkel
• Eilertsen, Mary-Elizabeth Bradley; Jozefiak, Thomas; Rannestad, Toril; Indredavik, Marit Sæbø; Vik, Torstein. (2013) Quality of Life in Children and Adolescents Surviving Cancer. European Journal of Cancer
  Sammendrag/abstract

2012

• Jozefiak, Thomas; Larsson, Bo Sture; Wichstrøm, Lars; Rimehaug, Tormod. (2012) Competence and emotional/behavioural problems in 7-16-year-old Norwegian school children as reported by parents. Nordic Journal of Psychiatry
  Vitenskapelig artikkel
• Eilertsen, Mary-Elizabeth; Jozefiak, Thomas; Rannestad, Toril; Indredavik, Marit Sæbø; Vik, Torstein. (2012) Quality of life in children and adolescents surviving cancer. European Journal of Oncology Nursing
  Vitenskapelig artikkel
• Reinfjell, Trude; Jozefiak, Thomas. (2012) Måleegenskaper ved den norske versjonen av The Pediatric Quality of Life Inventory TM, 4.0 (PedsQLTM). PsykTestBarn
  Vitenskapelig oversiktsartikkel/review
• Jozefiak, Thomas; Reinfjell, Trude. (2012) Måleegenskaper ved den norske versjonen av Kinder Lebensqualität Fragebogen (KINDL®). PsykTestBarn
  Vitenskapelig oversiktsartikkel/review
• Thaulow, Christian Magnus; Jozefiak, Thomas. (2012) A comparison between child psychiatric outpatients with AD/HD and anxiety/depression. Nordic Journal of Psychiatry
  Vitenskapelig artikkel
• Kornør, Hege; Jozefiak, Thomas. (2012) Måleegenskaper ved den norske versjonen av Child Behavior Checklist – versjon 2-3, 4-18, 1½-5 og 6-18 (CBCL). PsykTestBarn
  Vitenskapelig oversiktsartikkel/review
• Weidle, Bernhard; Melin, Karin; Drotz, Elisabeth; Jozefiak, Thomas; Ivarsson, Tord. (2012) Preschool and current autistic symptoms in children and adolescents with obsessive-compulsive disorder (OCD). Journal of Obsessive-Compulsive and Related Disorders
  Vitenskapelig artikkel
• Mattejat, Fritz; Remschmidt, Helmut; Jozefiak, Thomas. (2012) ILC Inventory of Life Quality in Children and Adolescents MANUAL norsk versjon. Hogrefe & Huber Publishers Hogrefe & Huber Publishers
  Oppslagsverk
• Jozefiak, Thomas. (2012) En sammenligning av barn med ADHD og angst/depresjon. BestPractice Psykiatri/Nevrologi/Geriatri
  Fagartikkel
• Eilertsen, Mary-Elizabeth; Jozefiak, Thomas; Rannestad, Toril; Indredavik, Marit Sæbø; Vik, Torstein. (2012) Children and Adolescents Surviving Cancer: Psychosocial Health and Quality of Life. Pediatric Blood & Cancer
  Sammendrag/abstract
• Eilertsen, Mary-Elizabeth; Jozefiak, Thomas; Rannestad, Toril; Indredavik, Marit Sæbø; Vik, Torstein. (2012) Quality of Life in Children and Adolescents Surviving Cancer. Pediatric Blood & Cancer
  Sammendrag/abstract

2010

• Jozefiak, Thomas; Larsson, Bo Sture; Wichstrøm, Lars; Wallander, Jan; Mattejat, Fritz. (2010) Quality of Life as reported by children and parents: a comparison between students and child psychiatric outpatients. Health and Quality of Life Outcomes
  Vitenskapelig artikkel
• Eilertsen, Mary-Elizabeth Bradley; Jozefiak, Thomas; Rannestad, Toril; Indredavik, Marit Sæbø; Vik, Torstein. (2010) Children and Adolescents Surviving Cancer: Psychosocial Health and Quality og Life. Pediatric Blood & Cancer
  Sammendrag/abstract

2009

• Jozefiak, Thomas; Larsson, Bo Sture; Wichstrøm, Lars. (2009) Changes in quality of life among Norwegian school children: a six-month follow-up study. Health and Quality of Life Outcomes
  Vitenskapelig artikkel
• Steinsbekk, Silje; Jozefiak, Thomas; Ødegård, Rønnaug; Wichstrøm, Lars. (2009) Impaired parent-reported quality of life in treatment-seeking children with obesity is mediated by high levels of psychopathology. Quality of Life Research
  Vitenskapelig artikkel
• Jozefiak, Thomas; Larsson, Bo Sture; Wichstrøm, Lars. (2009) Quality of life and mental health in children and adolescents: Child and parent perspectives. NTNU-trykk
  Doktorgradsavhandling
• Jozefiak, Thomas. (2009) Quality of Life and mental health in children and adolescents: Child and parent perspectives. NTNU-trykk
  Doktorgradsavhandling

2008

• Jozefiak, Thomas; Larsson, Bo Sture; Wichstrøm, Lars; Mattejat, Fritz; Ravens-Sieberer, Ulrike. (2008) Quality of Life as reported by school children and their parents: a cross-sectional survey. Health and Quality of Life Outcomes
  Vitenskapelig artikkel