This cluster-randomized controlled trial aims to evaluate the efficacy of an AI-assisted Guided Narrative Writing (AI-GNW) in alleviating emotional distress among adolescents. Classes will be randomized in a 1:1:1 ratio to one of three arms-AI-GNW, a no-feedback GNW (NF-GNW), or a Neutral Writing Group (NWG)-and will complete a three-day writing intervention. On the first day, participants in both GNW conditions will recount a negative experience and reflect on their thoughts and feelings; on the second day, they will focus exclusively on the negative aspects of that experience; and on the third day, they will explore its positive dimensions. In contrast, NWG participants will objectively document their previous day's daily routine. After each session, those in the AI-GNW arm will receive individualized, AI-generated feedback, whereas NF-GNW participants will proceed without feedback.
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Revised Child Anxiety and Depression Scale (RCADS)
Timeframe: Baseline (day 0), post-intervention (day 4), and follow-ups at 1 (day 34),3 (day 64), and 6 (day 94) months after the intervention.
Insomnia Severity Index (ISI)
Timeframe: Baseline (day 0), post-intervention (day 4), and follow-ups at 1 (day 34),3 (day 64), and 6 (day 94) months after the intervention.