Is My Child’s Speech "Normal"? New Australian Research for 2026

If you’ve ever wondered why your toddler calls an elephant an "efelant" or why your preschooler still can’t quite say their "r" sounds, you’re not alone. Reassuringly, new Australian research published in Archives of Disease in Childhood (2026) has released the most detailed insight into child speech development in over 20 years.

Led by experts from the Murdoch Children’s Research Institute and the University of Melbourne, this study followed 1,179 children across Victoria and New South Wales to create modern benchmarks for Aussie kids, rather than relying on outdated international data.

When to wait, and when to take action:

The study found that today’s children may be taking a little longer to master clear speech than previous generations. This research gives parents straightforward guidance on when to ‘wait and see’ and when to seek support.

By age 3-4:

Many early speech patterns should naturally disappear by your child’s fourth birthday. These include things like dropping the ends of words (“pi” for “pig”), swapping sounds (“bin” for “pin”), or using easier front sounds (“tate” for “cake”). If these persist beyond age four, it is recommend to seek help.

By age 5:

As children approach school age, they’re expected to master more complex sounds. Difficulties like replacing “z” with “d” (“doo” for “zoo”) or simplifying “ch” sounds (“wits” for “witch”) should typically resolve before starting school.

By age 6-7:

Some speech patterns are considered “late bloomers” and can persist into the early school years. These include replacing “r” or “l” with “w” (“wainbow”), dropping sounds in clusters (“bue” for “blue”), or simplifying longer words (“di-saur” for “dinosaur”). According to the 2026 data, these errors are usually still within the range of typical development.

Red flags that are never typical:

While many speech errors are part of learning, some are not considered typical at any age. These include leaving off the beginning of words (“ish” for “fish”), reversing sounds (“efelant” for “elephant”), or consistently using unusual sound patterns like moving sounds to the back of the mouth (“keggy” for “teddy”).

If you hear these, they are signs to seek help from a speechie immediately:

How to get support:

If your child is difficult to understand, or you are worried about their speech, it is important to act early. Start by speaking with your GP about available pathways, including medicare supported options. You can also find a specialist through the Speech Pathology Australia website, which offers a "Find a Speech Pathologist" tool. Input from your child's teacher can provide valuable context for your medical appointment.

Every child grows and develops at their own pace. This new Australian research offers clear, evidence-based guidelines that help remove the guesswork of whats ‘normal’ and when your little one might need extra support. Early intervention can make a big difference and have a lasting impact.

Reference:

Shepherd, D., van Reyk, O., Vogel, A. P., Debono, S., Boulton, C., Hill, A., Coldrey, T., Coles, F., & Morgan, A. (2026). Red flags for speech impairment: who should we refer to speech therapy? Archives of Disease in Childhood. Advance online publication. https://doi.org/10.1136/archdischild-2025-329279