Stress responses and coping among Turkish adolescents: Exploring psychometric properties of Responses to Stress Questionnaire in a clinical sample.

= 3.11, comparative fit index = .91, root-mean-square error of approximation = .070). Multi-group CFA showed full measurement invariance across gender. The RSQ-TR demonstrated moderate to strong internal consistency (total α = .88; subscales .78-.86) and good test-retest reliability (intraclass correlation coefficient = .72-.76). Engagement coping strategies were associated with lower psychopathology and better social functioning, while disengagement coping and involuntary stress responses were linked to greater internalizing symptoms and poorer social outcomes. Findings support the reliability and validity of RSQ-TR scores in clinically referred Turkish adolescents. The results extend evidence for the RSQ's structural robustness and clinical relevance to psychiatric samples with mixed diagnoses, supporting its use for identifying maladaptive stress responses and informing intervention planning in mental health settings. (PsycInfo Database Record (c) 2026 APA, all rights reserved).