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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 morphemes by the number of utterances.
In total there are 17 morphemes in this data set. In order to find the MLU, we divide the total number of morphemes (17) by the total number of utterances (4). In this particular data set, the mean length of utterance is 17/4 = 4.25. [34]
Hoff's 2003 analysis supports this correlation and shows that the mean length of utterance and vocabulary of mothers who talk to their children is related to their SES status and thus child vocabulary development. For instance, high-SES mothers use longer utterances and a wider variety of words when talking to their children. These mothers also ...
This analysis of five stages of language development, determined by structures used and by mean length of utterance (MLU), [10] ... (for example, referring to a ...
Examples include the phrase, phraseme, constituent or interjection. Chunks commonly highlight lexical items or fixed expression idioms. Chunking prosody [15] is present on any complete utterance and may correspond to a syntactic category, but not necessarily. The well-known English chunk "Know what I mean?"
For example, a child might see a zebra for the first time and ask, ... Fagan, M. (June 2009). "Mean length of utterance before words and grammar: Longitudinal trends ...
As an example, the utterance 'Don't forget to record it' might in slow, careful speech be pronounced /dəʊnt fəget tə rɪkɔːd ɪt/, with 19 phonemes, each of which is phonetically realized. When the sentence is said at high speed it might be pronounced as [də̃ʊ̃ʔ fɡeʔtrɪkɔːd ɪt], with 16 units.
The notion of an illocutionary act is closely connected with Austin's doctrine of the so-called 'performative' and 'constative utterances': an utterance is "performative" if, and only if it is issued in the course of the "doing of an action" (1975, 5), by which, again, Austin means the performance of an illocutionary act (Austin 1975, 6 n2, 133).