“…Participants were recruited through online adverts on the British Stammering Association's website (Stamma.org), and through local stuttering groups across the United Kingdom. Inclusion criteria were (1) Person who stutters, (2) English-speaking, (3) United Kingdom resident, (4) age over 18, (5) in possession of a smartphone (iPhone/Android) and headphones/earphones, (6) no previous participation in the feasibility trial or focus groups for same treatment, (7) no current experience of psychosis/ schizophrenia/epilepsy/dementia/amnesia/bipolar disorder/ intellectual disability/autism spectrum disorder, (8) no current use of tranquilizers or change in dosage of antidepressants in the past 6 weeks, (9) no current suicidal ideation, (10) no alcohol/substance dependence, (11) no severe cognitive impairment, (12) no treatment for social anxiety within the last year, (13) not participating in any other psychotherapeutic treatments during the study, and (14) no experience of severe cyber/motion-sickness. All participants who completed the pre-and post-treatment assessments (or equivalent for waitlist) received a £10 Amazon evoucher.…”