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About me

Dr. Kardefelt-Winther holds a PhD from the London School of Economics and Political Science. He is a quantitative researcher with many years of experience in survey design and multivariate statistics. His research focuses on behavioral addictions, with a special interest in excessive use of technology and related cognitive, behavioral and health outcomes.

Kardefelt-Winther holds a post-doctoral research position at the Department of Clinical Neuroscience and Centre for Psychiatry Research at Karolinska Institutet in Sweden. His work at Karolinska Institutet takes an interdisciplinary approach to excessive use of technology and its health outcomes by integrating social science and medical perspectives. At present he coordinates a project at the Stockholm Centre for Dependency Disorders which investigates co-morbidity between substance addiction and internet addiction in a clinical population of substance abusers.

Based on his previous work for the European Commission funded EU Kids Online project he is also involved in research and policymaking efforts regarding children’s internet use, online safety and child rights. He currently works at UNICEF Office of Research in Florence where he coordinates the Global Kids Online project, a multi-country comparative research project on the risks and opportunities of children’s internet use and its impact on children's well-being.

He serves on the Editorial board of Addiction Research & Theory, a leading interdisciplinary peer-reviewed journal that examines addictive behavior from a variety of perspectives and methods of inquiry.


Peer-reviewed publications

Kardefelt-Winther, D. (2014). Problematizing excessive online gaming and its psychological predictors. Computers in Human Behavior, 31, p. 118-122.

Kardefelt-Winther, D. (2014). A conceptual and methodological critique of internet addiction research: towards a model of compensatory internet use. Computers in Human Behavior, 31, p. 351-354.

Kardefelt-Winther, D. (2014). The moderating role of psychosocial well-being on the relationship between escapism and excessive online gaming. Computers in Human Behavior, 38, p. 68-74.

Kardefelt-Winther, D. (2014). A critical account of DSM-5 criteria for internet gaming disorder. Addiction Research & Theory, Early Online, p. 1-6.

Kardefelt-Winther, D. (2014). Meeting the unique challenges of assessing internet gaming disorder. Addiction, 109, p. 1568-1570.

Kardefelt-Winther, D. (2015). Assessing diagnostic contribution of Internet Gaming Disorder criteria requires improved content, construct and face validity - a response to Rehbein and colleagues (2015). Addiction, 110, p. 1359-1360.

Kardefelt-Winther, D. (2015). Problems with atheoretical and confirmatory research approaches in the study of behavioral addictions. Journal of Behavioral Addictions, 4(3), p. 126-129.

Kardefelt-Winther, D. (2015). Making the case for hypothesis-driven theory testing in the study of Internet Gaming Disorder. Addictive Behaviors, DOI: 10.1016/j.addbeh.2015.09.012

Griffiths, M., van Rooij, A., Kardefelt-Winther, D., et al. (2016). Working towards an international consensus on criteria for assessing Internet Gaming Disorder: A critical commentary on Petry et al (2014). Addiction, 111, p. 167-175.

Kardefelt-Winther, D. (2016). Conceptualizing internet use disorders: addiction or coping process? Psychiatry and Clinical Neurosciences. doi: 10.1111/pcn.12413

Stoilova, M., Livingstone, S., & Kardefelt-Winther, D. (2016). Global Kids Online: Researching children′s rights globally in the digital age. Global Studies of Childhood, 6, p. 455-466

Kardefelt-Winther, D., Heeren, A., Schimmenti, A., Van Rooij, A. J., Maurage, P., Colder Carras, M., … Billieux, J. (2017). How can we conceptualize behavioral addiction without pathologizing common behaviors? Addiction, 1–7.



Byrne, J., Kardefelt-Winther, D., Livingstone, S., & Stoilova, M. (2016) Global Kids Online research synthesis, 2015–2016. UNICEF and London School of Economics and Political Science. 

Byrne, J., Albright, K., & Kardefelt-Winther, D. (2016) From research findings to policy-making: children’s rights in a digital age. London: Global Kids Online.


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