Language Development Test 3

Last update by kgiambruno on 03/03/2011
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Roger Brown's Grammatical morphemes

MLU- mean length utterance
-Widely used as an index of syntactic development in early childhood-after stage 4, MLU loses its validity

a measure of utterance length based on the average number of free and bound morphemes contained in a set of spontaneously produced utterances

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  • kgiambruno
    Brown's 14 grammatical morphemes

    rate and age of emergence differs but the order stays the same, complexity determines order

    1 Present Progressive I driving

    2-3 Prepositions in, on

    4 Plural balls

    5 Irregular Past Tense broke, fell

    6 Possessive Daddy's chair

    7 Uncontractible Copula This is hot

    8 Articles a, the

    9 Regular past tense She walked

    10 3rd person present tense, regular He works

    11 3rd preson present tense, irregular She does

    12 Uncontractible auxilliary Ross is winning

    13 Contractible copula He's a clown

    14 Contractible auxiliary She's drinking

  • kgiambruno
    Berko study
    *illicity production test *

    Wug study

    tells you that they arent learning morphemes by imitation-they have their won internal rule based system

    lang. learning not being taught its happening through listening

    ex: Irregular tense markers-do not follow a rule, how do we learn them?
  • kgiambruno
    is evidence of a rule based system b/c they wouldn't learn "runned" by imitation

    1) at first just imitation
    2) overgeneralizing once they learn the rule of past tense
    3) learn exceptions then use the correct form

    length of stages vary but its a regular pattern-evidence of a rule based system
  • kgiambruno
    adds precision to what we say

    form-phonology, morphology, syntax

    2 word utterance stage-primarily using noun and verb

    2nd stage-using different word relationships school vs schools vs. schooling (expands meaning of morphemes)
  • kgiambruno
    Lexical vs. Grammatical morphemes
    Lexical morpheme- has meaning in and of itself, nouns, verbs, adjectives

    grammatical morpheme- does not has meaning in and of itself
    -conditions, conjunctions, etc that have no meaning on its own
  • kgiambruno
    Free vs. Bound morphemes
    Free-morpheme that can stand alone, makes a word by itself (school, buy)
    -lexical (open class): serve as in preserve
    -grammatical: at, and (word that stand alone but need another word to give it meaning)

    Bound-has to be attached to something (plural "s")
    -lexical(close class)- clude as in include
    -grammatical-er as in higher
  • kgiambruno
    Derivational vs. Inflectional morphemes
    ONLY for bound morphemes

    Derivational- changes grammatical category of the root
    -like to likable-when you add a new morpheme a new word is formed

    Inflectional-plural, possessives, "est"-.suffixes
    -does not form a new word
  • kgiambruno
    Optional Infinitive Stage
    A stage in early childhood (age 2-3) during which children sometimes include tense inflections on their main clauses and some time fail to include tense inflections in this context-producing infinitive verb forms instead

    part of normal development of morphology
  • kgiambruno
    Optional infinitives
    -main clauses require verbs to to be marked for tense

    -non-inflicted, infinitive verb forms are heard by child in dependent clauses
    -I dont want to go to the store
    -During this stage, children believe that marking tense in main clauses is optional

    they dont always change the tense, sometimes they do sometimes they dont
  • kgiambruno
    any one of the possible phonetic forms of a morpheme

    which allomorph is used depends on the final sound of the word
    (sound changes based on root words)

    -plural markers can have the phonetic form of /s/ hats, /z/ cars, or watches /ez/
    -reg past -ed can have the phonetic form of talked /t/ rowed/d/. /ed/ painted
  • kgiambruno
    Extended optional infinitive
    Clinical marker for specific language impairment (SLI)

    Children with SLI fail to progress beyond optional infinitive stage
    Normal OI to age 3
    SLI OI to age 8 or later (thus, extended) emerge in written language in adulthood)

    System is poorly organized
    -need lots of repetition/strategy to learn form and bypass system
Language Development Test 3
Language Development Test 3
Total Views: 31149
Semantic, Phonological, and morphological development
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