Sense of coherence (SOC) is a relevant contributor and predictor of the individuals' mental and physical health. There are a number of studies about SOC, but only two validation articles of the sense of coherence scale (SOCS) were found on adolescents and none on children. The aim of this research was to validate the SOC scale in youth under 18. We hypothesized that younger children and children without psychiatric problems will have higher SOC than older ones, and children with psychiatric symptoms. We also wanted to examine the factor structure of both the 13 and the 29 item versions of the scale to study which is more valid in child and adolescent population. 199 children and 198 adolescents were included in the study; the mean age was 14.3 (SD 2.1) years. The sample included average youth from schools and youth under psychiatric treatment. Strength and Difficulties Questionnaire (SDQ) and Inventory of Life Quality (ILK) were used for validation of the SOCS. SOCS-13 was applied to compare SOC of children and adolescents. Children had higher SOC than adolescents in both samples. Males had higher SOC than females in children but not in adolescents. Psychiatric and behavioral symptoms were associated with a lower SOC regardless