Jón Friðrik Sigurðsson

Research interests

Publications

• The External Genitalia Score (EGS): A European Multicenter Validation Study

  The Journal of Clinical Endocrinology & Metabolism · 2019 · 10.1210/clinem/dgz142

• Cognitive–behavioural therapy in medication-treated adults with attention-deficit/hyperactivity disorder and co-morbid psychopathology: a randomized controlled trial using multi-level analysis

  Psychological Medicine · 2015 · 10.1017/s0033291715000756

• The Mental Health Characteristics of Pregnant Women With Depressive Symptoms Identified by the Edinburgh Postnatal Depression Scale

  The Journal of Clinical Psychiatry · 2014 · 10.4088/jcp.13m08646

• Quality of life among untreated sleep apnea patients compared with the general population and changes after treatment with positive airway pressure

  Journal of Sleep Research · 2014 · 10.1111/jsr.12262

• Symptoms of Insomnia among Patients with Obstructive Sleep Apnea Before and After Two Years of Positive Airway Pressure Treatment

  SLEEP · 2013 · 10.5665/sleep.3226

• A National Epidemiological Study of Offending and Its Relationship With ADHD Symptoms and Associated Risk Factors

  Journal of Attention Disorders · 2012 · 10.1177/1087054712437584

• Cognitive behaviour therapy in medication-treated adults with ADHD and persistent Symptoms: A randomized controlled trial

  BMC Psychiatry · 2011 · 10.1186/1471-244x-11-116

• Insomnia in untreated sleep apnea patients compared to controls

  Journal of Sleep Research · 2011 · 10.1111/j.1365-2869.2011.00972.x

• Associations between sexual abuse and family conflict/violence, self-injurious behavior, and substance use: The mediating role of depressed mood and anger

  Child Abuse & Neglect · 2011 · 10.1016/j.chiabu.2010.12.003

• An epidemiological study of ADHD symptoms among young persons and the relationship with cigarette smoking, alcohol consumption and illicit drug use

  Journal of Child Psychology and Psychiatry · 2011 · 10.1111/j.1469-7610.2011.02489.x

• Physical activity buffers the effects of family conflict on depressed mood: A study on adolescent girls and boys

  Journal of Adolescence · 2011 · 10.1016/j.adolescence.2011.01.003

• Screening for attention-deficit hyperactivity disorder and co-morbid mental disorders among prison inmates

  Nordic Journal of Psychiatry · 2009 · 10.1080/08039480902759184

• Trends in depressive symptoms, anxiety symptoms and visits to healthcare specialists: A national study among Icelandic adolescents

  Scandinavian Journal of Public Health · 2008 · 10.1177/1403494807088457

• The Beck Depression Inventory Second Edition (BDI-II): Psychometric properties in Icelandic student and patient populations

  Nordic Journal of Psychiatry · 2008 · 10.1080/08039480801962681

• The Relationship Between Satisfaction with Life, ADHD Symptoms, and Associated Problems Among University Students

  Journal of Attention Disorders · 2008 · 10.1177/1087054708323018

• Interrogative suggestibility, compliance and false confessions among prisoners and their relationship with attention deficit hyperactivity disorder (ADHD) symptoms

  Psychological Medicine · 2008 · 10.1017/s0033291708002882

• Custodial interrogation, false confession and individual differences: A national study among Icelandic youth

  Personality and Individual Differences · 2006 · 10.1016/j.paid.2005.12.012

• Postnatal Head Growth Deficit Among Premature Infants Parallels Retinopathy of Prematurity and Insulin-like Growth Factor-1 Deficit

  PEDIATRICS · 2006 · 10.1542/peds.2005-1926

• Confessions and denials and the relationship with personality

  Legal and Criminological Psychology · 2004 · 10.1348/135532504322776898

• The Relationship of Compliance with Coping Strategies and Self-Esteem

  European Journal of Psychological Assessment · 2003 · 10.1027//1015-5759.19.2.117

• Differences and similarities between violent offenders and sex offenders

  Child Abuse & Neglect · 2000 · 10.1016/s0145-2134(99)00150-7

• The Gudjonsson Confession Questionnaire-Revised (GCQ-R) factor structure and its relationship with personality

  Personality and Individual Differences · 1999 · 10.1016/s0191-8869(98)00278-5

• The psychological characteristics of ‘false confessors’. A study among icelandic prison inmates and juvenile offenders

  Personality and Individual Differences · 1996 · 10.1016/0191-8869(95)00184-0

• How frequently do false confessions occur? an empirical study among prison inmates

  Psychology Crime and Law · 1994 · 10.1080/10683169408411933

• Alcohol and drug intoxication during police interrogation and the reasons why suspects confess to the police

  Addiction · 1994 · 10.1111/j.1360-0443.1994.tb03358.x

Current projects

No projects listed.