Usability Testing of Guided Internet-based Parent Training for Challenging Behavior in Children with Fetal Alcohol Spectrum Disorder (Strongest Families FASD).

Background: In order to meet the need for accessible interventions and support for families affected by fetal alcohol spectrum disorder (FASD), we have developed an Internet-based, distance intervention for caregivers of children with FASD between the ages of four and twelve, called Strongest Families™ FASD.

Objectives: To evaluate the usability of the Strongest Families FASD program content and website in terms of learnability, efficiency and acceptability.

Methods: A remote usability testing approach was conducted in two iterative cycles of participants. Synchronous online usability testing sessions were conducted, followed by asynchronous testing. A total of 18 participants were included, comprised of both health care professionals with expertise in FASD and caregivers of children with FASD. The data collected in each cycle was examined for commonalities and results were used to inform changes to the website and content after each cycle.

Results: Participants rated the website as appealing and relatively easy and fast to use. Nevertheless, several usability problems were identified such as difficulty navigating between sections of content on the website, displaying too much content per page, and the relevance and appropriateness of the content as it related to FASD.

Conclusions: The identification of usability problems was an important step in refining the Strongest Families FASD program before its effectiveness is evaluated in a randomized controlled trial.