JMIR Publications

ABSTRACT

Background:

Internet-based cognitive-behavioural therapy (iCBT) is a necessary step towards increasing the accessibility of mental health services. Yet, few iCBT programs have been evaluated for their fidelity to therapeutic principles of CBT or usability standards. Additionally, many existing iCBT programs do not include treatments targeting both anxiety and depression – commonly co-occurring conditions.

Objective:

Evaluate the usability and fidelity of Tranquility, a novel iCBT program for anxiety, to CBT principles, and engage in a co-design process to adapt Tranquility to include treatment elements for depression.

Methods:

CBT experts (n = 6) and mental health informed peers (n = 6) reviewed the iCBT program Tranquility. CBT experts assessed Tranquility’s fidelity to CBT principles and were asked to identify necessary interventions for depression using two simulated client case examples. Mental health informed peers engaged in two co-design focus groups to discuss adaptations to the existing anxiety program and the integration of interventions for depression. Both groups completed online surveys assessing Tranquility’s usability and the likelihood that they would recommend the program.

Results:

CBT experts’ mean rating of Tranquility’s fidelity to CBT was 91%, indicating a high fidelity to CBT. Five out of six CBT experts and all mental health informed peers (88% of participants) rated Tranquility as satisfactory, indicating that they may recommend Tranquility to others, and they rated its usability highly (M = 76.56, SD = 14.07). Mental health informed peers provided suggestions about how to leverage engagement with Tranquility (e.g., add incentives, notification control).

Conclusions:

This preliminary study demonstrated Tranquility’s strong fidelity to CBT and usability standards. Results highlight the importance of involving stakeholders in the co-design process and future opportunities to increase engagement.