Artificial Intelligence-Assisted Expressive Writing Intervention to Improve Adolescent Emotional Distress: A Cluster Randomized Controlled Trial

Inclusion Criteria

Inclusion Criteria: * Native speakers of Chinese who are proficient in reading and writing Chinese. * Signed a informed consent form and voluntarily agreed to participate. * Owns a smartphone, tablet, or similar electronic device and is able to complete the required questionnaires and writing tasks. Exclusion Criteria: * Prior clinical diagnosis of schizophrenia or any other major psychiatric disorder. * Presence of severe cognitive impairment, language-expression difficulties, or any other condition that would impede writing ability. * Participation in another similar psychological intervention or psychotherapy within the past three months. * Inability to tolerate a group-based intervention setting due to personal health conditions (e.g., serious illness). * Unwillingness or inability to provide necessary cooperation or to sign the informed consent form.