The mean length of utterance (mlu) decreases with age is a false statement.
What is mean length of utterance?
Mean length of utterance is defined as the measure of the degree of language development in children which is based on the length of utterance in their speech.
The Mean length of utterance increase with increase in age. This is because, at 4 years old expected MLU is 4.4 morphemes, at 4 years 3 months expected MLU is 4.71.
Therefore, the mean length of utterance (mlu) decreases with age is a false statement.
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