Growing interest in the potential use of digital technologies, including Internet-based treatments and smart phone applications, to deliver treatments for common mental disorders has resulted in rapid expansions in the availability and utilisation of digital mental health interventions (Hill et al., 2017). There is an ever-growing range of digital mental health interventions available including mobile applications, such as Headspace and MoodyMe (Flett et al., 2020); self-guided and guided Internet-based interventions, such as ICare (Taylor et al., 2020); online video conferencing group interventions (Bantjes et al., 2021); and automated conversational agents (i.e.