Background and activities

I am a professor in clinical child- and adolescent psychology, and co-PI of the Trondheim Early Secure Study (TESS). TESS started in 2007 and comprises a sample of 1,250 children drawn from the 2003 and 2004 birth cohorts and their parents in Trondheim, Norway. In depth data (interviews, questionnaires, tests, and observations) has been collected every second year since the children were 4 years old,- from participants, parents and teachers. The eight datawave started in February 2022, the participants now being 18 years old.  

The goal of the study is to determine the prevalence and course of common mental health problems, and to detail potential etiological factors.The TESS also aims to describe children’s typical development as well as determinants of individual differences in different aspects of development, such as personality, attachment, parent-child relationships, social and academic competence, self-concept, behavioral and emotional regulation, sexuality, cognition, physical activity, eating, sleep, internet gaming and social media use.

My main research areas are development of health behavior (eating, physical activity, sleep), overweight, mental health and social media use.


Information about the TESS:

tess - NTNU

THE TRONDHEIM EARLY SECURE STUDY (TESS) | Silje Steinsbekk | 20 updates | 13 publications | Research Project (


Scientific, academic and artistic work

A selection of recent journal publications, artistic productions, books, including book and report excerpts. See all publications in the database

Journal publications