Are Digitally Delivered Psychological Interventions for Depression the Way Forward? A Review.

Digitally delivered interventions aim to make psychological treatments more widely accessible and minimize clinician input. Although their clinical efficacy against wait-list, control conditions is well established, comparative outcome studies are a much better way to examine if psychotherapies are equally effective. Such reviews are still relatively lacking. The aim of this review was therefore to evaluate the effectiveness of digitally delivered psychological therapies over traditionally delivered (face-to-face) ones to alleviate symptoms in adults experiencing sub-threshold and clinical depression. Findings showed that digital interventions produced consistently clinically significant improvements in depressive symptoms. Moreover, the level of therapist contact or expertise did not affect much treatment effectiveness. Future research is pertinent to investigate further the influence of therapist input, the reasons for dropout, how to improve users' experience and therapeutic engagement and maintain improvements at post-treatment.