Let’s Learn Language (LLL)
Synopsis
Let’s Learn Language was a cluster randomised controlled trial, nested in a population based survey. More than 1200 parents participated in the survey, reporting on their child’s communication and behaviour at ages 12 and 18 months. The 301 children who were ‘slow-to-talk’ at 18 months were invited to participate in the controlled trial, which evaluated the benefits of a low intensity parent-toddler language promotion program.
Summary
| Study name | Let’s Learn Language |
| Study abbreviation | LLL |
| Current principal investigator/s |
Prof Melissa Wake Prof Sheena Reilly Prof Sharon Goldfeld Prof Luigi Girolametto A/Prof Lisa Gold A/Prof Obioha Ukoumunne |
| Current project manager | Prof Melissa Wake |
| Cohort representative (study contact) | Prof Melissa Wake |
| Postal address |
Centre for Community Child Health Murdoch Children’s Research Institute 50 Flemington Road Parkville, VIC 3052 |
| Phone | +61 3 9345 5761 |
| Melissa.Wake@rch.org.au | |
| Primary Institution | Centre for Community Child Health, Murdoch Children’s Research Institute |
| Collaborating Institution/s |
Royal Children’s Hospital Melbourne University of Toronto Deakin University |
| Major funding sources | NHMRC |
| Study website | http://www.rch.org.au/ccch/research-projects/Let_s_Learn_Language/ |
| Key reference | Wake, M., Tobin, S., Girolametto, L., Ukoumunne, O.C., Gold, L., Levickis, P., Sheehan, J., Goldfeld, S., & Reilly, S. Outcomes of population based language promotion for slow to talk toddlers at ages 2 and 3 years: Let’s Learn Language cluster randomised controlled trial. BMJ, 2011;343:d4741. doi: 10.1136/bmj.d4741 |
| Are data available outside study team? | No |
| Study focus | Language development and language delay |
| Sampling frame |
Overall sample: Maternal health centres in 3 local government areas in Melbourne, Australia RCT: Those children who scored at or below the 20th centile on the expressive vocabulary checklist at age 18 months |
| Year commenced | 2007 |
| Commencement sample |
1217 (overall sample) 301 (RCT) |
| Intergenerational? | No |
| Imaging | No |
| Linkage | No |
| Biosamples? | No |
| Ethics approvals or requirements? | This project only (Specific consent) |
Waves
| Wave | Year | Age (mean, range) | Eligible sample |
|---|---|---|---|
| 1 | 2007 | 12 months | 1217 |
| 2 | 2007 – 2008 | 18 months |
1138 (301 RCT – 158 intervention, 143 control) |
| 3 | 2008 | 2 years | RCT intervention 148, control 137 |
| 4 | 2009 | 3 years | RCT intervention 140, control 127 |