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The efficacy and optimal matching of an Internet-based acceptance and commitment therapy intervention for depressive
Chunxiao Zhao1,2,3, Bruce E Wampold4,5, Zhihong Ren1,2,3
1School of Psychology, Central China Normal University, Wuhan, China.
Objective:
The present study tested the efficacy of an unguided internet-based Acceptance and Commitment Therapy (iACT) program for depression, and identified the psychological characteristics of participants who benefitted the most from the program.
Method:
Undergraduate students with mild to severe symptoms of depression were randomized to the iACT group (n = 95) or the waiting-list group (WLC group; n = 87). Depressive symptoms and positive mental health were assessed at baseline (T0 ), at the end of the 6-week program (T1 ), and at a 3-month follow-up (T2 ).
Results:
Compared with the WLC group, the iACT group showed significantly more improvement in depressive symptoms (d = 1.27) and positive mental health (d = 0.59), both at T1 and T2 . Latent Profile Analysis identified three classes of participants: Sensitive-to-Relationship, Low-Reactive-Depression, and Endogenous-Depression group. In general, the treatment was particularly suitable for the Sensitive-to-Relationship class.
Conclusion:
The iACT was effective in treating the depressive symptoms of undergraduates, especially suitable for the clients with high baseline depression, high externality, high resistance, and high sensitivity to relationships.
