Participants
hoarding
This study was approved by the Ethical Committee of Anhui Normal University. A total of 1,620 questionnaires were distributed to university students, and 14,78 valid questionnaires were returned (91.2% effective rate). Among the 1,478 surveys, 533 college students had high hoarding problems (total score of Saving Inventory-Revised above the cutoff of 42). Participants in this study were recruited from these 533 university students. The inclusion criteria of the intervention group were being aged 18 years or older and having a self-reported total score on the Saving Inventory-Revised above the cutoff of 42. Exclusion criteria assessed Flowchart of participants.To test the reasonableness of the sample size, statistical power was calculated using G