Answer:
False
Step-by-step explanation:
Mean length of utterance (MLU) refers to the measure of linguistic productivity in children. Conventionally, MLU is calculated by collecting 100 utterances (term used to refer to the smallest units of speech) enunciated by a child and dividing the number of morphemes (terms used to refer the smallest grammatical unit of in a given language) by the number of utterances.
It seems to be a relation between age and Mean length of utterance, since according to some researches such as the one developed by Miller and Chapman in 1981, MLU increases with age in a rate of 1.2 morphemes per year.