Sexual harassment between peers begins as early as Grade 4 and continues throughout lower secondary school. Most of those who sexually harass others have also experienced harassment themselves. These are among the findings of a doctoral thesis in psychology by Aziz-Kaan Dönmez from the University of Gothenburg, who studied peer sexual harassment among Swedish children and adolescents in Grades 4–9. Dönmez will defend his thesis on October 2.