A pilot study of self-guided internet-delivered cognitive behavioural therapy for anxiety and depression among Arabs.

"Declaration of conflicting interests The Authors declare that there is no conflict of interest."

"Funding The funding for the study was provided by Macquarie University as part of the lead author's PhD candidature. BFD is supported by a National Health and Medical Research Council Australian Public Health Fellowship. MG is supported by a Macquarie University Research Fellowship. The development of the Wellbeing Course was enabled by funding from the Australian National Health and Medical Research Council Project Grant No. 630,560."

"A single-group open trial design was utilised to examine the feasibility, acceptability and preliminary efficacy of the self-guided and culturally modified iCBT Arabic Wellbeing Course for Arab consumers worldwide. A sample size of 15 was determined as sufficient (one-tailed test, power at 80%, and alpha at .05) to detect within-group Cohen's d effect size of .70; the minimum likely effect based on previous studies employing the Wellbeing Course (, , ). This study was approved by the Human Research Ethics Committee of Macquarie University, Sydney, Australia, and registered as a clinical trial with the Australian New Zealand Clinical Trials Registry, ACTRN12614000124639."