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Accepted for/Published in: JMIR Formative Research

Date Submitted: Sep 27, 2024
Date Accepted: Mar 2, 2025

The final, peer-reviewed published version of this preprint can be found here:

Developing an Internet-Based Cognitive Behavioral Therapy Intervention for Adolescents With Anxiety Disorders: Design, Usability, and Initial Evaluation of the CoolMinds Intervention

Sørensen NM, Skaarnes H, Mathiasen K, Thastum M, Jeppesen Lomholt J

Developing an Internet-Based Cognitive Behavioral Therapy Intervention for Adolescents With Anxiety Disorders: Design, Usability, and Initial Evaluation of the CoolMinds Intervention

JMIR Form Res 2025;9:e66966

DOI: 10.2196/66966

PMID: 40198911

PMCID: 12015348

Warning: This is an author submission that is not peer-reviewed or edited. Preprints - unless they show as "accepted" - should not be relied on to guide clinical practice or health-related behavior and should not be reported in news media as established information.

Internet-based cognitive behavioral therapy for adoles-cents with anxiety disorders: Development and evalua-tion of the “CoolMinds” intervention

  • Nikita Marie Sørensen; 
  • Helene Skaarnes; 
  • Kim Mathiasen; 
  • Mikael Thastum; 
  • Johanne Jeppesen Lomholt

ABSTRACT

Background:

Digital Mental Health Interventions (DHMIs) may help increase access to psychological treat-ment for adolescents with anxiety disorders. However, many clinical evaluations of digital treatments report low adherence and engagement, and high rates of drop-out, which remain challenges when implemented in routine care. Involving intended end-users in the development process by using user-centered design methods may help maximize user engagement and proof interventions for implementation.

Objective:

The objective of this study was to describe the methods used to develop a new Internet-based cognitive behavioral intervention (ICBT), CoolMinds, within a user-centered design framework.

Methods:

The initial outline of the intervention was conceptualized based on current literature in the field and expertise of senior researchers and experienced clinical psychologists. The development of intervention content progressed in three iterative design phases: 1) identifying needs and design specifications, 2) designing and testing prototypes, and 3) running feasibility tests with end-users. In phase 1, 24 adolescents participated in a user-involvement workshop exploring adolescents’ preferences on graphic identity and communication styles as well as adolescent help-seeking behavior. In phase 2, 4 adolescents attended individual usability tests where they were presented with a prototype of a psychoeducational session and asked to speak out loud about their actions in the platform. In phase 3, 7 families from the feasibility trial participated in a semi-structured interview about their satisfaction with and initial impressions of the platform and intervention content while in treatment. Activities in all three phases were audio-recorded, transcribed and coded. The intervention was continuously revised after each phase based on the feedback.

Results:

In phase 1, adolescent feedback guided the look and feel of the intervention content, i.e., color scheme, animation style, communication style etc. Participants generally liked content that was relatable, age-appropriate, and felt motivating. In phase 2, adolescents perceived the platform as intuitive and easy to navigate and the session content as easy to understand but lengthy. In phase 3, families were generally satisfied with the intervention content. Their feedback helped identify areas for further improvement such as editing down the material and including more in-session breaks.

Conclusions:

Utilizing user-involvement practices in the development of interventions helps ensure continued alignment of the intervention with end-user needs and may help proof the intervention for implementation in routine care practice.


 Citation

Please cite as:

Sørensen NM, Skaarnes H, Mathiasen K, Thastum M, Jeppesen Lomholt J

Developing an Internet-Based Cognitive Behavioral Therapy Intervention for Adolescents With Anxiety Disorders: Design, Usability, and Initial Evaluation of the CoolMinds Intervention

JMIR Form Res 2025;9:e66966

DOI: 10.2196/66966

PMID: 40198911

PMCID: 12015348

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