Language toward Change in Virtual Self-Help Groups Predicts the Abstinence of Problem Gamblers: Automatic Change Talk Classifier (Preprint)
BACKGROUND Although participation in physical meetings has been shown to be effective in reducing the risk of relapse in gambling, the effects of participating in virtual meetings have rarely been reported. OBJECTIVE The present study aims to determine the effectiveness of virtual meetings for problem gamblers. METHODS Participants were 2,828 gamblers participating in the 99 virtual meetings; 360 had stopped gambling for more than three years (abstinent gamblers) and the other 2,468 had not yet stopped gambling (non-abstinent gamblers). Their 1,665,620 utterances were encoded by the automatic change talk classifier. RESULTS The abstinent gamblers participated in the meetings longer than non-abstinent gamblers (t = 8.26, P < .001). They had more change talks than non-abstinent gamblers (t = 6.46, P < .001). The classifier also showed the optimal treatment options responding to minute changes in their participation and utterances in the meetings. CONCLUSIONS Virtual meetings are effective for gamblers. Treatment via the Internet increases the generalizability of treatment because of the size and variety of the data.