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Speech Development Between 30 and 119 Months in Typical Children I: Intelligibility Growth Curves for Single-Word and Multiword Productions
Katherine C. Hustad, Tristan Mahr, Phoebe Natzke, Paul J. Rathouz · 2021 · Journal of Speech, Language, and Hearing Research
- Children
- 538 children
- Where
- The United States (run at the University of Wisconsin–Madison)
- Ages
- 2½ to almost 10 years
- How
- Children said words and sentences, and adults who didn't know them wrote down what they heard
- What it found
- For a typical child, strangers understood half of the words in their sentences by about 34 months and three-quarters by about 46 months. Nearly all children (all but the slowest 5 in 100) reached these levels about a year later.
- Limits
- Children were tested repeating set words and sentences, which can be harder to understand than everyday talk. It was done in one country.