Lancaster 1991.

Methods	Randomised Controlled Trial
Participants	15 participants aged between 3;04‐4;05 12 males and 3 females took part. Details provided on family history and early development. Majority had family incidence of speech difficulties and two had a language delay
Interventions	Clinician or parent administered phonology intervention Clinician provided an eclectic approach, parent therapy was based on auditory bombardment Therapy administered over 6 months. On average children received 17 minutes of therapy a week while parents received a maximum of 9 minutes of training a week 5 children received clinician therapy 5 children received parent therapy 5 children received delayed therapy
Outcomes	Composite Deviancy Score
Notes	Children needed to have a standard score of below 80 on the EAT
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Unclear risk	B ‐ Unclear