2016

  • Mann, MJ., Kristjansson, AL., Smith, ML., Sigfusdottir, ID. (in press). The Influence of Negative Life Events and Problem Behavior on Grades in Early Adolescence: Pathways to Academic Risk in Middle School. Research in Middle Level Education.
  • Sigfusdottir, I. D.; Kristjansson, A. L.; Thorlindsson, Th. & Allegrante, J. P. Stress and adolescent well-being: the need for an interdisciplinary framework. Health Promotion International
  • Kristjansson, AL; Sigfusdottir, ID; et al. Population trends in smoking, alcohol use and primary prevention variables among adolescents in Iceland. Addiction
  • Gudjonsson, GH; Sigurdsson, JF; Sigfusdottir, ID; et al. A national epidemiological study investigating risk factors for police interrogation and false confession among juveniles and young persons. Social Psychiatric Epidemiology
  • Drake, KE; Sigfusdottir, ID; et al. Investigating the interplay between the reported witnessing and experiencing of physical violence within the home, the death of a parent or sibling, stress-sensitivity, and reported false confessions in males. Personality and Individual Differences
  • Gudmundsdottir, DG; Asgeirsdottir, BB; Huppert, FA; Sigfusdottir, ID; et al. How Does the Economic Crisis Influence Adolescents’ Happiness? Population-Based Surveys in Iceland in 2000-2010. Journal of Happiness Studies

2015

  • Kristjansson, AL; Mann, MJ og Sigfusdottir, ID. Licit and illicit substance use by adolescent e-cigarette users compared with conventional cigarette smokers, dual users, and nonusers. Journal of Adolescent Health. Journal of Adolescent health
  • Drake, KE; Sigfusdottir, ID; Sigurdsson, JF og Gudjonsson, GH. Gender differences in the interplay between exposure to trauma and parental disturbances within the home, stress-
  • sensitivity and reported false confessions in adolescents. Personality and Individual Differences
  • Álfgeir Logi Kristjánsson og Inga Dóra Sigfúsdóttir. E-cigarette use and relations to tobacco and alcohol use among adolescents. BMC Medicine.
  • Bryndís Björk Ásgeirsdóttir og Inga Dóra Sigfúsdóttir. Gender differences in co-occurrence of depressive and anger symptoms among adolescents in five Nordic countries. Scandinavian Journal of Public Health, 183-189.
  • Álfgeir Logi Kristjánsson, Michael J. Mann, Inga Dóra Sigfúsdóttir og Jack E. James. Mode of Daily Caffeine Consumption Among Adolescents and the Practice of Mixing Alcohol With Energy Drinks: Relationships to Drunkenness. Journal of Studies on Alcohol and Drugs, 397-405.
  • Michael J. Mann, Álfgeir Logi Kristjánsson, Inga Dóra Sigfúsdóttir og Megan L. Smith. The Role of Community, Family, Peer, and School Factors in Group Bullying: Implications for School-Based Intervention. Journal of School Health, 477-486.
  • Kim E. Drake, Gísli H. Guðjónsson, Inga Dóra Sigfúsdóttir og Jón Friðrik Sigurðsson. An investigation into the relationship between the reported experience of negative life events, trait stress-sensitivity and false confessions among further education students in Iceland. Personality and Individual Differences, 135-140.

2014

  • Jack E. James, Álfgeir Logi Kristjánsson og Inga Dóra Sigfúsdóttir. A Gender-Specific Analysis of Adolescent Dietary Caffeine, Alcohol Consumption, Anger, and Violent Behavior. Substance Use and Misuse, 1-11.
  • Mann, M. J., Kristjansson, A. L., Sigfusdottir, I. D. (in press). The Impact of Negative Life Events: Comparing the Relative Vulnerability of Middle School, High School, and College-age Students.Research in Middle Level Education Online.
  • Eidsdottir, S. T., Kristjansson, A. L., Sigfusdottir, I. D., Garber, C. E., Allegrante, J. P. (in press). Association between higher BMI and depressive symptoms in Icelandic adolescents: the mediational function of body image.European Journal of Public Health.
  • Kristjansson, A.L., Sigfusdottir, I.D., Sigfusson, J., Allegrante, J.P. (2014). Self-Generated Identification Codes in Longitudinal Prevention Research with Adolescents: A Pilot Study of Matched and Unmatched Subjects. Prevention Science, 15(2), 205-212
  • Kristjansson, A. L., Sigfusdottir, I. D., Mann, M. J., James, J. E. (2014). Caffeinated Sugar-Sweetened Beverages and Common Physical Complaints in Icelandic Children Aged 10-12 Years.Preventive Medicine, 58, 40-44.
  • Gudjonsson, G. H., Sigurdsson, J. F., Sigfusdottir, I. D., & Young, S. (2014). A national epidemiological study of offending and its relationship with ADHD symptoms and associated risk factors. Journal of Attention Disorders, 18(1), 3–13.

2013

  • Sigfusdottir, I. D., Asgeirsdottir, B. B., Gudjonsson, G. H., & Sigurdsson, J. F. (2013). Suicidal ideations and attempts among adolescents subjected to childhood sexual abuse and family conflict/violence: The mediating role of anger and depressed mood. Journal of Adolescence, 36(6), 1227–1236.
  • Halldorsson, V., Thorlindsson, T. and Sigfusdottir, I.D. (2013). Adolescent sport participation and alcohol use: The importance of sport organization and the wider social context. International Review for the Sociology of Sport, DOI: 10.1177/1012690213507718.
  • Kristjansson, A. L., Sigfusdottir, I. D., & Allegrante, J. P. (2013). Adolescent substance use and peer use: a multilevel analysis of cross-sectional population data. Substance abuse treatment, prevention, and policy, 8(1), 27.
  • Kristjansson, A.L., Sigfusson, J., Sigfusdottir, I.D., Allegrante, J.P. (2013). Data collection procedures for school-based surveys among adolescents: the Youth in Europe Study. Journal of School Health, 83(9), 662-667.
  • Kristjansson, A. L., Sigfusdottir, I.D., Frost, S.S., & James, J.E. (2013). Adolescent Caffeine Consumption and Self-reported Violence and Conduct Disorder. Journal of Youth and Adolescence, 1 – 10.
  • Eidsdottir, S.T., Kristjansson, A.L., Sigfusdottir, I.D., Garber, C.E., Allegrante, JP. (2013). Secular trends in overweight and obesity among Icelandic adolescents: Do parental education levels and family structure play a part? Scandinavian Journal of Public Health, 41, 384-391.
  • Yang, F., Helgason, A.R., Sigfusdottir, I.D., Kristjansson, A.L. (2013). Electronic Screen Use and Mental Well-being of 10-12 year old children. European Journal of Public Health, 23(3), 492-498.
  • Sigfusdottir, I.D., Kristjansson, A.L., Agnew, R. (2012). A Comparative Analysis of General Strain Theory. Journal of Criminal Justice, 40, 117-127.
  • Gísladóttir ,T.L, Matthíasdóttir, A., Kristjánsdóttir, H. (2013). The effect of adolescents’ sports clubs participation on self-reported mental and physical conditions and future expectations. J Sports Sci, 31(10), 1139-45.

2012

  • Asgeirsdottir, B. B., Ingolfsdottir, G., & Sigfusdottir, I. D. (2012). Body Image Trends among Icelandic Adolescents: A Cross-sectional National Study from 1997 to 2010. Body Image, 9, 404-408.
  • Palsdottir, A., Asgeirsdottir, B. B., & Sigfusdottir, I. D. (2012). Gender difference in well-being during school lessons among 10 to 12 year old children: The effects of school, family and peer related factors. Scandinavian Journal of Public Health, 40, 605-613.
  • Guðjonsson, G. H., Sigurdsson, J. F., Sigfusdottir, I. D., et al. (2012). False confessions to police and their relationship with conduct disorder, ADHD, and life adversity. Personality and Individual Differences 52, 696-701.
  • Sigfusdottir, I. D., Kristjansson, A. L., Robert, A. (2012). A comparative analysis of general strain theory. Journal of Criminal Justice 40, 117-127.
  • Guðjonsson, G. H., Sigurdsson, J. F., Sigfusdottir, I. D., et al. (2012). 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 53, 304-312.
  • Thorisdottir, I. E., Kristjansson, A. L., Sigfusdottir, I. D., et al. (2012). The landscape of Overweight and Obesity in Icelandic Adolescents: Geographic Variation in Body-Mass Index between 2000 and 2009. Journal of Community Health 37, 234-241.

2011

  • Gunnlaugsson, G., Kristjansson, A. L., et al. (2011). Intrafamilial conflict and emotional well-being: A population based study among Icelandic adolescents. Child Abuse & Neglect, 35, 372-381.
  • James, J. E., Kristjansson, A. L., Sigfusdottir, I. D., et al. (2011). Adolescent substance use, sleep, and academic achievement: Evidence of harm due to caffeine. Journal of Adolescence, 34, 665-673.
  • Kristjansson, A. L., Sigfusdottir, I. D., Allegrante, J. P & James, J. E. (2011). Adolescent Caffeine Consumption, Daytime Sleepiness, and Anger. Journal of Caffeine Research, 1(1), 75-82.
  • Sigfusdottir, I. D., Asgeirsdottir, B. B., Sigurdsson, J. F., Gudjonsson, G. H. (2011). Physical activity buffers the effects of family conflict on depressed mood: A study on adolescent girls and boys Journal of Adolescence, 34, 895-902.
  • Kristjansson, A. L., Sigfusdottir, I. D., Karlsson, T., Allegrante, J. P. (2011). The Perceived Parental Support (PPS) Scale: Validity and reliability in the 2006 Youth in Europe substance use prevention survey. Child Indicators Research, 4(3), 515-528.
  • Asgeirsdottir, B. B., Sigfusdottir, I. D., Gudjonsson, G. H. et al. (2011). 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, 35, 210-219.
  • James, J. E., Kristjansson, A. L., Sigfusdottir, I. D. (2011). Adolescent Substance Use, Sleep, and Academic Achievement: Evidence of Harm Due to Caffeine. Journal of Adolescence, 34, 665-673.
  • Sigfúsdóttir, I. D., Kristjansson, A. L., Gudmundsdottir, M. L., & Allegrante, J. P. (2011). Substance use prevention through school and community-based health promotion: a transdisciplinary approach from Iceland. Global health promotion, 18(3), 23–26.
  • Kristjansson, A. L., Sigfusdottir, I. D., Karlsson, T., Allegrante, J. P. (2011). The Perceived Parental Support (PPS) Scale: Validity and reliability in the 2006 Youth in Europe substance use prevention survey. Child Indicators Research, 4, 515-528.
  • James, J. E., Kristjansson, A. L., Sigfusdottir, I. D. (2011). Adolescent Substance Use, Sleep, and Academic Achievement: Evidence of Harm Due to Caffeine. Journal of Adolescence, 34(4), 665-673.

2010

  • Thorlindsson, T. and Halldorsson, V. (2010). Sport, and use of anabolic androgenic steroids among Icelandic high school students: A critical test of three perspectives. Substance Abuse Treatment, Prevention, and Policy, 5, 32.
  • Sigfusdottir, I. D., Asgeirsdottir, B. B., Sigurdsson, J. F., and Gudjonsson, G. H. Physical activity buffers the effects of family conflickt on depressed mood: A study on adolescent girls and boys. Journal of Adolescence, 34(5), 895-902.
  • Asgeirsdottir B. B, Gudjonsson G. H, Sigurdsson J. F, et al.Protective processes for depressed mood and anger among sexually abused adolescents: The importance of self-esteem. Personality and individual differences, 49(5), 402-407
  • Kristjansson, A. L., James, J. E., Allegrante, J. P., Sigfusdottir, I. D., Helgason, A. R. (2010). Adolescent substance use, parental monitoring, and leisure time activities: 12-year outcomes of primary prevention in Iceland.Preventive Medicine, 51, 168-171.
  • Eidsdottir, S. P, Kristjansson, A. L., Sigfusdottir, I. D, Garber, C. E, Allegrante, J. P. (2010). Trends in Body Mass Index among Icelandic Adolescents and Young Adults from 1992 to 2007. International Journal of Environmental Research and Public Health, 7, 2191-2207.
  • Sigurdsson, J. F., Gudjonsson, G., Asgeirsdottir, B. B., Sigfusdottir, I. D. (2010). Sexually abusive youth: what are the background factors that distinguish them form other youth? Psychology, Crime and Law, 1-15.
  • Sigfusdottir, I. D, Gudjonsson, G. H, Sigurdsson, J. F. 2010. Bullying and delinquency: The mediating role of anger. Personality and Individual Differences, 48, 391-396.
  • Kristjansson, A. L., Sigfusdottir, I. D., James, J. E., Allegrante, J. P., Helgason, A. R. (2010). Perceived Parental Reactions an Peer Respect as Predictors of Adolescent Cigarette Smoking and Alcohol Use. Addictive Behaviors, 35, 256-259.
  • Kristjansson, A. L., Sigfusdottir, I. D., Allegrante, J. P. (2010). Health Behavior and Academic Achievement among Adolescents: The Relative Contribution of Dietary Habits, Physical Activity, BMI and Self-Esteem. Health Education & Behavior,37(1), 51-64.

2009

  • Gudjonsson, G., Sigurdsson, J. F, Sigfusdottir, I. D (2009). False confessions among 15- and 16-year-olds in compulsory education and the relationship with adverse life events. Journal of Forensic Psychiatry & Pscyhology, 20, 950-963.
  • Gault-Sherman, M., Silver, E., Sigfusdottir, I. D (2009). Gender and the associated impairments of childhood sexual abuse: A national study of Icelandic youth. Social Science and Medicine, 69, 1515-1522.
  • Gudjonsson, G. H., Sigurdsson, J. F, Sigfusdottir, I. D. (2009). Interrogation and false confessions among adolescents in seven European countries: What background and pscyhological variables best discriminate between false confessors and non-false confessors? Psychology, Crime & Law, 15, 711-728.
  • Kristjansson, A. L., Sigfusdottir, I. D. (2009). The Role of Parental Support, Parental Monitoring, and Time spent with Parents on Adolescent Academic Achievement in Iceland: A Structural Model of Gender Differences. Scandinavian Journal of Educational Research, 53, 481-496.
  • Bernburg, J. G., Thorlindsson, T., Sigfusdottir, I. D (2009). The neighborhood effects of disrupted family processes on adolescent substance use. Social Science & Medicine, 69, 129-137.
  • Sigfusdottir, I. D, Silver, E. (2009). Emotional Reactions to Stress among Adolescent Boys and Girls: An Examination of the Mediating Mechanisms proposed by General Strain Theory. Youth and Society, 40, 571-590.
  • Bernburg, J. G., Thorlindsson, Th., Sigfusdottir, I. D. (2009). Relative Deprivation and Adolescent Outcomes in Iceland: A Multilevel Test. Social Forces, 87, 1223-1250.
  • Bernburg, J. G., Thorlindsson, Th., Sigfusdottir, I. D. (2009). The spreading of suicidal behavior: The contextual effect of community household poverty on adolescent suicidal behavior and the mediating role of suicide suggestion. Social Science & Medicine, 68, 380-389.
  • Sigfusdottir, I. D., Thorlindsson, Th., Kristjansson, A. L., Roe, K. M. And Allegrante, J. P. (2008) Substance use prevention for adolescents: the Icelandic Model.Health Promotion International, 24 (1), 16-25.
  • Kristjansson, A. L., Sigfusdottir, I. D., Allegrante, J. P., Helgason, A. R. (2009).Parental divorce and adolescent cigarette smoking and alcohol use: assessing the importance of family conflict. Acta Pædiatrica, 98, 537-542.
  • Kristjansson, A. L., Sigfusdottir, I. D., Allegrante, J. P., Helgason, A. R. (2009). Adolescent Health Behavior, Contentment in School, and Academic Achievement.American Journal of Health Behavior, 33(1), 69-79.

2008

  • Sigfusdottir, I. D., Kristjansson, A. L., Thorlindsson, Th. and Allegrante, J. P. (2008). Trends in prevalence of substance use among Icelandic adolescents, 1995–2006.Substance Abuse Treatment, Prevention, and Policy, 3, 12.
  • Gudjonsson, G. H., Sigurdsson, J. F, Sigfusdottir, I .D, Asgeirsdottir, B. B. (2008). False confessions and individual differences: The importance of victimization among youth. Personality and Individual Differences, 45, 801-805.
  • Sigfusdottir, I. D., Asgeirsdottir, B. B., Sigurdsson, J. F. and Gudjonsson, G. H. (2008).Trends in depressive symptoms, anxiety symptoms and visits to healthcare specialists:A national study among Icelandic adolescents.Scandinavian Journal of Public Health, 36(4),361-368.
  • Eiðsdottir, S. Þ., Kristjansson, A. L., Sigfusdottir, I. D., Allegrante, J. P. (2008). Trends in physical activity and participation in sports clubs among Icelandicadolescents.European Journal of Public Health, 18(3),1–5.
  • Sigfusdottir, I. D., Asgeirsdottir, B. B., Gudjonsson, G. H., Sigurdsson, J. F. (2008).A Model of Sexual Abuse´s Effects on Suicidal Behavior and Delinquency:The Role ofEmotions as Mediating Factors. Journal ofYouth and Adolescence, 37, 699–712.
  • Kristjansson, A. L., Sigfusdottir, I. D., Allegrante, J. P. and Helgason, A. R. (2008).Social correlates of cigarette smoking among Icelandic adolescents:A population-based cross-sectional study. BMC Public Health, 8, 86.
  • Kristjansson, A. L. (2007). On Social Equality and Perceptions of Insecurity. European Journal of Criminology, 4(1), 59-86.

2007

  • Gudjonsson, G. H., Sigurdsson, J. F., Asgeirsdottir, B. B., Sigfusdottir, I. D. (2007).Custodial interrogation:What are the background factors associated withclaimsoffalse confession to police? The Journal of Forensic Psychiatry &Psychology,18(2), 266-275.
  • Sigfusdottir, I. D., Kristjansson, A. L. and Allegrante, J. P. (2007). Health behaviour and academic achievment in Icelandic school children. Health education research, 22(1), 70-80.
  • Gunnlaugsson, G. G, Kristjansson, A. L, Einarsdottir, J, Sigfusdottir, I. D. (2007). Domestic conflict, emotional well being and delinquent behaviour: a population-based study among Icelandic adolescents. European Journal of Public Health, 17, suppl.2.
  • Sigfusdottir, I. D., Thorlindsson, Th. and Bjarnason, Th. (2007). Religion: soutien divin et tension psychologique [Religion: Divine Support and pscyhological tension] Social Compass, 54, 473. Greinin á ensku.
  • Thorlindsson, Th., Bjarnason, Th. and Sigfusdottir, I. D. (2007). Individual and Community Processes of Social Closure: A Study of Adolescent Academic Achievement and Alcohol Use. Acta Sociologica, 50, 161-168.
  • Sigfusdottir, I. D., Gudjonsson, G. H., Sigurdsson, J. F., Asgeirsdottir, B. B. (2006). Custodial interrogation, false confession and individual differences:A national study among Icelandic youth. Personality and Individual Differences, 41, 49–59.
  • Sigurdsson, J. F., Gudjonsson, G. H., Bragason, A. V., Kristjansdottir, E., Sigfusdottir, I. D. (2006). The role of violent cognition in the relationship between personality and the involvementin violent films and computer games. Personality and Individual Differences,41, 381-392.
  • Bjarnason, Th., Thorlindsson, Th., Sigfusdottir, I. D., Welch, M. R. (2005). Familial and Religious Influences on Adolescent Alcohol Use: A Multi-Level Study of Students and School Communities. Social Forces, 84(1), 375-390.
  • Sigfusdottir, I. D., Farkas, G. and Silver, E. (2004). The Role of Depressed Mood and Anger in the Relationship Between Family Conflict and Deliquent Behavior. Journal of Youth and Adolescence, 33(6), 509-522.
  • Bjarnason, Th. and Sigfusdottir, I. D. (2002). Nordic Impact: Article Productivity and Citation Patterns in Sixteen Nordic Sociology Departments.Acta Sociologica, 45, 253-267.