New study highlights potential role of play-based intervention in supporting toddlers with language delay

New research published in Frontiers in Rehabilitation Sciences has highlighted the potential benefits of specialist-mediated play therapy as an early intervention strategy for toddlers experiencing mild language developmental delay.

The study examined language development outcomes among children aged 18 to 36 months who participated in one of three intervention approaches: clinic-based structured language rehabilitation, parent-led family intervention and specialist-mediated play therapy. Researchers reported that all three approaches were associated with improvements in language development over time, however the strongest gains were observed in the group participating in specialist-mediated play therapy.

The findings contribute to growing international discussion about the role of early intervention, responsive relationships and play-based engagement in supporting children’s communication development during the critical early years.

Language development remains a significant area of focus across early childhood education, health and allied health sectors.

Early childhood professionals are often among the first to observe communication differences, language delays or developmental concerns through everyday interactions, play experiences and ongoing observation of children's learning and development.

Researchers involved in the study noted that early intervention was associated with positive language outcomes across all groups, reinforcing the importance of identifying and responding to developmental concerns as early as possible.

The study examined 180 toddlers and tracked developmental outcomes across a 12-month period using language developmental quotient (DQ) assessments at baseline, six months and twelve months.

While the study was undertaken within a rehabilitation and intervention context rather than an early learning setting, the findings may resonate with broader conversations already occurring across the ECEC sector regarding the role of play in supporting children's development.

Play-based learning remains a central principle of both the Early Years Learning Framework (EYLF) and many contemporary early childhood pedagogies.

Researchers found that specialist-mediated play therapy demonstrated a stronger association with language gains than the other intervention approaches examined within the study. However, the authors emphasised that the research was observational rather than experimental and therefore demonstrated association rather than direct causation.

The authors also described the project as a pilot study, noting that further research would be required to strengthen the evidence base and explore outcomes across larger and more diverse populations.

The findings arrive amid increasing sector focus on inclusion, developmental vulnerability and access to early supports for children experiencing additional needs.

Many ECEC services continue to work closely with families, speech pathologists, occupational therapists, psychologists and early intervention providers to support children's participation, communication and wellbeing.

Sector leaders have increasingly highlighted the importance of multidisciplinary collaboration and early access to support services, particularly as educators report growing complexity in children's developmental and behavioural support needs.

The study adds to a broader body of evidence suggesting that responsive interactions, relationship-based approaches and intentional play experiences can play an important role in supporting communication development during the early years.

While researchers caution against overinterpreting the findings due to the study's observational design, the results contribute to ongoing discussion about how best to support children experiencing language delay during the critical developmental period before school entry.

For early childhood educators, the research also reinforces the importance of observation, early identification, family partnerships and evidence-informed practice when responding to children's communication and developmental needs.

As inclusion and early intervention continue to be major priorities across the sector, studies exploring the impact of different developmental support approaches are likely to remain an area of growing interest for educators, service leaders and policymakers alike.

Read the full research here.