Young People Aged 18-25 With Depression or Anxiety Mood Participate in an LLM-based Digital Dialogue Intervention Study

This study is a 28-day randomized controlled trial (RCT). Residents were randomly assigned to an intervention group or a waiting group according to the order in which they were successfully contacted by the staff, and each user was asked to engage in a total of 28 days of dialog intervention with the Douyin companion bot and complete three psychological questionnaires (on Days 1, 14, and 28); however, the intervention group began to receive the dialog intervention after completing the first questionnaire, and the waiting group began to receive the dialog intervention after completing the third questionnaire. During the first four weeks, the waiting group was treated as a blank control. The two groups of subjects completed the three questionnaires at exactly the same point in time. Each user's depression, anxiety, and positive and negative emotions were measured using the Patient Health Questionnaire (PHQ-9), the Generalized Anxiety Disorder Scale (GAD-7) and the Positive and Negative Affect Schedule (PANAS), respectively.