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Mean length of utterance - Wikipedia, the free encyclopedia
Mean Length of Utterance (or MLU ) is a measure of linguistic productivity in children. It is traditionally calculated by collecting 100 utterances spoken by a child and dividing the number of morp...
en.wikipedia.org/wiki/Mean_length_of_utterance |
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As children mature, the length of their utterances increases. We can relate utterance length to age by calculating a mean length of utterance (MLU). ... Now, in order to find the mean length of utterance we take the total number of morphemes (17) and divide it by the total number of utterances (4). Thus, the mean length...
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The relationship between child age and mean length of utterance measured in morphemes (MLU) was studied in a sample of 123 middle- to upper-middle-class midwestern children, aged 17 to 59 months, conversing with mothers in free play.
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A measure of complexity in L1 children's speech taken by calculating the average number of morphemes per utterance, using standardized rules; the purpose is to compare children at the same level of language knowledge, thus establishing stages of acquisition independent of chronological age.
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Roger W. Brown, as a result of his extensive research on children's language in 1973, described five stages of development based on the mean length of the their utterances (MLU).
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mean length of utterance: Definition and Pronunciation ... World & News ... mean life...
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Prior to Brown’s (1973) introduction of mean length of utterance in morphemes (MLUm), child language researchers and speech-language pathologists used mean length of utterance in words (MLUw) as a measurement of a child’s gross language development.
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