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Article History

Received: 27 February 2019

Accepted: 18 April 2019

First Online: 14 May 2019

Authors’ information

: Dr. Diana Moesgen, psychologist, is a researcher at the German Institute of Addiction and Prevention Research since 2006. In her research, she focuses on substance use and misuse and substance-involved families. Moreover, she works as a licensed cognitive behavioural therapist in her own practice since 2016.Katharina Ise, psychologist, has been working as a researcher at the German Institute of Addiction and Prevention Research at the Catholic University of Applied Science Cologne since 2016. Her research focuses on prevention of substance abuse and mental disorders of children and adolescents. Since 2017, she has worked as a licensed child and adolescent psychotherapist in her own practice.Janina Dyba, psychologist, has been a researcher at the German Institute of Addiction and Prevention Research since 2014. The main emphasis of her research is the effect of methamphetamine addiction on parenting, families and children. She is currently working on her doctoral thesis in this field.Prof. Dr. Michael Klein is a psychologist and cognitive behavioural therapist. Since 1994, he has taught clinical psychology and addiction research at the Catholic University of Applied Sciences Cologne and is head of the associated German Institute of Addiction and Prevention Research.

: All procedures were approved by the ethics committee of the Catholic University of Applied Sciences North Rhine-Westphalia in Cologne, Germany. All procedures in the study adhere to Good Clinical Practice (GCP) standards, including informed written consent from all participants.

: Not applicable.

: The authors declare that they have no competing interests.

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