The Fluency Trust Residential Course for young people who stutter: A pragmatic feasibility study

•The Fluency Trust Residential Course is for teenagers who stutter.•The course involves group speech and language therapy and outdoor activities.•This feasibility study had positive outcomes (e.g. 100% recruitment and retention).•Test- re-test reliability of two Progress Questionnaire outcome measures was good.•Further research into the course is recommended. A feasibility study of The Fluency Trust Residential Course (FTRC) for adolescents who stutter was conducted. The study aimed to measure key areas of a feasibility trial, for example, recruitment and retention, outcome measure completion, outcome measure reliability, and acceptability of the intervention to inform future research into the FTRC. Quantitative and qualitative methods were used. Participants were 23 adolescents (12–17 years), 23 parents and 2 Speech-Language Pathologists (SLPs) from the FTRC. Data collection included: outcome measure collection via a pre-test post-test quasi-experimental design (including two baseline measures), intervention fidelity checklists, semi-structured interviews with adolescents to explore acceptability of the intervention and semi-structured interviews with SLPs to explore their experiences of research participation and views on a future trial. Recruitment, retention and outcome measure completion levels were all 100%. Intervention fidelity was 95% and there were no adverse events. Outcome measures showed good test- re-test reliability: Progress Questionnaire Child Intraclass Correlation Coefficient (ICC) = 0.87 (95% CI = 0.69–0.94 sig