Child language development Flashcards
What is Mehler’s study? (1988)
babies in France respond to sounds at 4 days
how many words at 18 months?
approx. 50 words
how many words at 2 years?
approx. 200 words
how many words at 5 years?
approx. 2000 words
how many words at 7 years?
approx. 4000 words
what word class do children learn first?
nouns
eg: daddy, mummy
what we’re Katherine Nelsons (1973) 4 categories for early acquisition?
- naming
- actions/events
- describing/modifying
- personal/social
What we’re Jean Aitchison’s (1987) 3 stages?
labelling, packaging, network building
what type of adjectives does Eve Clark believe are learnt first?
common adjectives
What are the 2 types of expansion in semantic development?
under-extension and over-extension
what is under-extension?
a common semantic ‘error’, when a word is given a narrower meaning
what is over-extension?
when a word is given a wider meaning, more frequent than under-extension, out of 50 words a child learns it is estimated that over 1/3 will be over-extension
What was Eve Clark’s (1977) study?
children base over-extension on physical qualities of objects, features such as the 5 senses
What are the 2 components of phonological simplification?
deletion and substitution
what is deletion?
when a child doesn’t say the final consonants, unstressed syllables, consonant clusters reduced
