| Methods |
Randomised Controlled Trial |
| Participants |
25 participants aged between 1;11 ‐ 2;11
All participants were middle class, most had completed post secondary education and all were either house wives or working
Gender details not given |
| Interventions |
Parental administered expressive vocabulary intervention based on HANEN priniciples adapted for focused stimulation. Delivered over 11 weeks for 150 minutes a week
12 children received parent intervention
13 children received delayed intervention |
| Outcomes |
Range of mother outcomes that were not used
Child outcomes:
Vocabulary and phrase complexity as determined by the CDI
Number of different words, and utterances from a language sample
Post test probes for target words
Outcomes Excluded:
Control word measures, Target words in interaction, multi‐word utterances |
| Notes |
Children were below the 5%tile on vocabulary as determined by the CDI |
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Allocation concealment (selection bias) |
Unclear risk |
B ‐ Unclear |
