Usability guidelines for developing and evaluating web-based mental health interventions: Establishing a practical framework
Background: Even though problems with usability constitute a major challenge to the implementation of new eHealth technology, the field web-based interventions is lacking usability guidelines for development and evaluation of web-based intervention platforms. Objective: The aim of present study is to create a set of eHealth-specific usability guidelines for the development and evaluation of web-based mental health interventions. Methods: Knowledge about usability was gathered from peripheral fields of e-learning, emotional design, and human-computer interaction in a top-down approach. This knowledge was synthesized into usability guidelines for web-based interventions, which were then case-tested on an existing web-based intervention for patients with health anxiety, using the heuristic evaluation method. Results: Nine broad guidelines were developed. The subsequent case-test of the web-based intervention showed that application of the guidelines was feasible and was able to identify several important usability issues with the intervention. Conclusions: Health professionals should be included in intervention design. Future usability assessment should focus on the different usability attributes. The relationship between usability and adherence needs further investigation.