| Stage | Description |
| Stage 1 | Child makes little or no speech sounds. |
| Stage 2 | Child is beginning to babble and make some sounds. |
| Stage 3 | Child babbles and says up to 20 words. |
| Stage 4 | Child babbles and says up to 50 words. |
| Stage 5 | Child uses around 100 words and is beginning to use 2-word combinations. |
| Stage 6 | Child uses around 300 words and is using 2-3 word combinations. |
| Stage 7 | Child uses 500+ words and says 4+ word combinations. |
| Stage 8 | Child communicates well using sentences. Child could benefit from activities that focus on listening comprehension and verbal expression. |