Glossary M
Glossary M
Deutsch: Durchschnitt / Español: Media / Português: Média / Français: Moyenne / Italiano: Media /
Mean is defined as the measure that represents an arithmetic average of a set of numbers. Mean is derived by dividing the sum of a group of numerical items by the total number of items in that group. For example, mean family income is obtained by dividing the total of all income reported by people 15 years and over in families by the total number of families. Moreover, Mean is a measure of central tendency obtained by summing the individual scores and dividing the sum by the number of scores.
There is a second meaning, where 'mean' refers to a type of aggression. This is described in the following chapters.
Mean length of utterance (MLU) refers to a measure of language development defined by the average number of meaningful language units (root words and endings) a child uses at any one time. Mean length of utterance (MLU), moreover, is defined as the common measure of grammatical development. It is the average length of the utterances in a sample of spontaneous speech, often counted in terms of the number of morphemes.
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