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Alfgeir L. Kristjansson

Alfgeir L. Kristjansson

D-Index & Metrics

Social Sciences and Humanities

D-Index
39
Citations
5555
World Ranking
5722
National Ranking
2707

Overview

Alfgeir L. Kristjansson is affiliated with West Virginia University in the United States and has contributed extensively to research in the fields of psychology, social sciences, and medicine. Their work spans various subfields, including general health professions, clinical psychology, education, safety research, and public health, environmental and occupational health.

Their research primarily addresses topics related to child and adolescent development, youth support systems, community health, and the impacts of mental health challenges and substance use among young populations. Key thematic areas in their scholarly output include:

  • Child and Adolescent Psychosocial and Emotional Development
  • Youth Development and Social Support
  • Community Health and Development
  • Homelessness and Social Issues
  • COVID-19 and Mental Health
  • Youth Substance Use and School Attendance
  • Early Childhood Education and Development

Kristjansson's frequent coauthors include Michael J. Mann, Megan L. Smith, Christa Lilly, Inga Dóra Sigfúsdóttir, and Ingibjörg Eva Þórisdóttir. These collaborations indicate a focused research network.

They have published research in multiple reputable journals. Among the venues where Kristjansson's work appears most often are:

  • Journal of School Health
  • Health Promotion Practice
  • Journal of Adolescent Health
  • Substance Use & Misuse
  • Preventive Medicine

Significant recent papers by Kristjansson include:

  • "Depressive symptoms, mental wellbeing, and substance use among adolescents before and during the COVID-19 pandemic in Iceland: a longitudinal, population-based study" (2021, The Lancet Psychiatry)
  • "Substance Use Among Youth During the COVID-19 Pandemic: a Systematic Review" (2022, Current Psychiatry Reports)
  • "Adolescent well-being amid the COVID-19 pandemic: Are girls struggling more than boys?" (2021, JCPP Advances)
  • "Longitudinal association between social media use and psychological distress among adolescents" (2020, Preventive Medicine)
  • "Effect of the COVID-19 pandemic on adolescent mental health and substance use up to March, 2022, in Iceland: a repeated, cross-sectional, population-based study" (2023, The Lancet Child & Adolescent Health)

Best Publications

  • Health Behavior and Academic Achievement Among Adolescents: The Relative Contribution of Dietary Habits, Physical Activity, Body Mass Index, and Self-Esteem

    Alfgeir Logi Kristjánsson;Inga Dóra Sigfúsdóttir;John P Allegrante

  • Health behaviour and academic achievement in Icelandic school children

    Inga Dóra Sigfúsdóttir;Alfgeir Logi Kristjánsson;John P Allegrante

  • Depressive symptoms, mental wellbeing, and substance use among adolescents before and during the COVID-19 pandemic in Iceland: a longitudinal, population-based study.

    Ingibjorg Eva Thorisdottir;Bryndis Bjork Asgeirsdottir;Alfgeir Logi Kristjansson;Alfgeir Logi Kristjansson;Heiddis Bjork Valdimarsdottir;Heiddis Bjork Valdimarsdottir

  • Substance Use Among Youth During the COVID-19 Pandemic: a Systematic Review

    Unknown

  • Substance use prevention for adolescents: the Icelandic Model.

    Inga Dóra Sigfúsdóttir;Thorolfur Thorlindsson;Alfgeir Logi Kristjánsson;Kathleen M Roe

  • Adolescent substance use, parental monitoring, and leisure-time activities: 12-year outcomes of primary prevention in Iceland

    Alfgeir Logi Kristjansson;Alfgeir Logi Kristjansson;Jack E. James;John P. Allegrante;Inga Dora Sigfusdottir

  • Adolescent Substance Use, Sleep, and Academic Achievement: Evidence of Harm Due to Caffeine.

    Jack E. James;Álfgeir Logi Kristjánsson;Inga Dóra Sigfúsdóttir

  • Population trends in smoking, alcohol use and primary prevention variables among adolescents in Iceland, 1997-2014.

    Alfgeir L. Kristjansson;Alfgeir L. Kristjansson;Inga Dora Sigfusdottir;Inga Dora Sigfusdottir;Thorolfur Thorlindsson;Michael J. Mann

  • The Role of Parental Support, Parental Monitoring, and Time Spent with Parents in Adolescent Academic Achievement in Iceland: A Structural Model of Gender Differences.

    Álfgeir Logi Kristjánsson;Inga Dóra Sigfúsdóttir

  • A comparative analysis of general strain theory

    Inga Dora Sigfusdottir;Inga Dora Sigfusdottir;Alfgeir Logi Kristjansson;Robert Agnew

  • Parental divorce and adolescent cigarette smoking and alcohol use: assessing the importance of family conflict

    Alfgeir Logi Kristjansson;Inga Dora Sigfusdottir;John P. Allegrante;John P. Allegrante;Asgeir R Helgason;Asgeir R Helgason

  • School Climate and Academic Achievement in Middle and High School Students

    Shay M. Daily;Michael J. Mann;Alfgeir L. Kristjansson;Megan L. Smith

  • Licit and Illicit Substance Use by Adolescent E-Cigarette Users Compared with Conventional Cigarette Smokers, Dual Users, and Nonusers.

    Alfgeir L. Kristjansson;Alfgeir L. Kristjansson;Michael J. Mann;Inga Dora Sigfusdottir;Inga Dora Sigfusdottir

  • Social correlates of cigarette smoking among Icelandic adolescents: A population-based cross-sectional study

    Alfgeir L Kristjansson;Alfgeir L Kristjansson;Inga D Sigfusdottir;John P Allegrante;John P Allegrante;Asgeir R Helgason;Asgeir R Helgason;Asgeir R Helgason

  • Adolescent well-being amid the COVID-19 pandemic: Are girls struggling more than boys?

    Thorhildur Halldorsdottir;Ingibjorg Eva Thorisdottir;Caine C. A. Meyers;Bryndis Bjork Asgeirsdottir

  • Data Collection Procedures for School-Based Surveys Among Adolescents: The Youth in Europe Study

    Alfgeir Logi Kristjansson;Alfgeir Logi Kristjansson;Jon Sigfusson;Inga Dora Sigfusdottir;Inga Dora Sigfusdottir;John P. Allegrante

  • Stress and adolescent well-being: the need for an interdisciplinary framework.

    Inga Dora Sigfusdottir;Inga Dora Sigfusdottir;Alfgeir Logi Kristjansson;Thorolfur Thorlindsson;John P. Allegrante;John P. Allegrante

  • Development and Guiding Principles of the Icelandic Model for Preventing Adolescent Substance Use

    Alfgeir L Kristjansson;Alfgeir L Kristjansson;Michael J Mann;Jon Sigfusson;Ingibjorg E Thorisdottir

  • Trends in physical activity and participation in sports clubs among Icelandic adolescents.

    Sigríður Þ. Eiðsdóttir;Álfgeir L. Kristjánsson;Inga D. Sigfúsdóttir;John P. Allegrante;John P. Allegrante

  • Body weight dissatisfaction in the Icelandic adult population: a normative discontent?

    Erna Matthiasdottir;Stefan Hrafn Jonsson;Alfgeir Logi Kristjansson

  • Trends in prevalence of substance use among Icelandic adolescents, 1995–2006

    Inga D Sigfusdottir;Alfgeir L Kristjansson;Thorolfur Thorlindsson;John P Allegrante;John P Allegrante

  • Adolescent caffeine consumption and self-reported violence and conduct disorder

    Alfgeir L. Kristjansson;Alfgeir L. Kristjansson;Inga Dora Sigfusdottir;Inga Dora Sigfusdottir;Stephanie S. Frost;Jack E. James

  • Perceived parental reactions and peer respect as predictors of adolescent cigarette smoking and alcohol use

    Alfgeir Logi Kristjansson;Alfgeir Logi Kristjansson;Inga Dora Sigfusdottir;Jack E. James;Jack E. James;John P. Allegrante;John P. Allegrante

Frequent Co-Authors

Inga Dora Sigfusdottir
Inga Dora Sigfusdottir Reykjavík University
John P. Allegrante
John P. Allegrante Columbia University
Ásgeir R. Helgason
Ásgeir R. Helgason Karolinska Institute
Jack E. James
Jack E. James Reykjavík University
Keith J. Zullig
Keith J. Zullig West Virginia University
Heiddis B. Valdimarsdottir
Heiddis B. Valdimarsdottir Icahn School of Medicine at Mount Sinai
Steven M. Kogan
Steven M. Kogan University of Georgia
Nicola J. Reavley
Nicola J. Reavley University of Melbourne
Robert Agnew
Robert Agnew Emory University
Steven Allender
Steven Allender Deakin University

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