Early delay in acquiring expressive vocabulary Mental and Behavioural Disorders Vocabulary disorders
Conditions
Interventions
Cluster randomised controlled trial, with cluster at the level of the well-child centre. Masked randomisation is due to occur in January 2008 after the study team has recruited all clusters. Allocatio
Sponsors
Murdoch Childrens Research Institute, Parkville (Australia)
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Parents of 12 month-old infants 2. Attending community well-child clinics across three Melbourne local government areas from May to November 2007 3. Parents whose toddlers, at 18 months, are identified by a brief, parent-reported vocabulary questionnaire as having minimal or no expressive vocabulary (e.g., scoring at or below the 20th percentile relative to age and sex norms)
Exclusion criteria
Exclusion criteria: 1. Children with already-diagnosed (or a referral for) cognitive delay or major medical conditions 2. Children with symptoms of Autism Spectrum Disorder 3. Children with cleft palates 4. Parents with insufficient English to attend a Parent Language Program and complete brief written questionnaires
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1. Parent-report of child's expressive vocabulary 2. Direct assessment of child's receptive language ability, child?s mean length of utterance in morphemes from videotaped short narrative 3. Parents' use of responsive language facilitation strategies derived from the videotaped language sample All collected at two and three years. | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Direct assessment of child's expressive language abilities 2. Parent-report of child's externalising behaviour problems Both collected at two and three years. | — |
Countries
Australia
Outcome results
None listed