MLU is an index of language progress that
A) captures a child's ability to produce grammatical sentences
B) captures a child's ability to produce the phonemes of their language sentences
C) captures a child's ability to combine idiomorphs in a productive manner
D) captures a child's ability to combine morphemes in a productive manner.

Question

Quizplus · Accepted Answer

MLU stands for "mean length of utterance" and it measures a child's ability to combine morphemes (the smallest units of meaning in language) in a productive manner. Specifically, MLU calculates the average number of morphemes per sentence produced by a child. This is considered an indicator of language progress because it reflects the child's ability to use more complex grammatical structures as they develop their language skills.

MLU Is an Index of Language Progress That