Schwartz 1985.

Methods	Randomised Controlled Trial
Participants	10 participants aged 2;08 ‐ 3;04 All participants were male, no SES characteristics were provided
Interventions	Clinician administered expressive syntax intervention. Therapy administered over 3 weeks 8 received experimental intervention 2 served as control group receiving intervention without target utterances
Outcomes	Multiword utterances used with the target stimuli
Notes	Children had a receptive difficulty approximately 6‐9 months behind CA, and an expressive difficulty approx 12‐16 months behind CA
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Unclear risk	B ‐ Unclear