Roger Brown Flashcards
What did Roger Brown do?
He outlined the 5 stages of language development in young children.
Telegraphic Speech= children use sentences that are stripped back but still grammatically correct.
He used Longitudinal Observations to record children’s emerging speech and to classify different types of telegraphic speech.
He noted children often made Vicarious Errors as language was emerging but the word order was correct.
He noted the length of sentences increased as their language developed (Mean Length Utterances- MLU).
What happens at Stage 1?
15-30 months
MLU= 1.0-2.0
50-60 word vocabulary
Uses basic phrases with intent
2 word sentences
Connects subjects with verbs and actions with objects
What happens at Stage 2?
28-36 months
MLU= 2.0-2.5
Use of prepositions
Uses plurals
Words appear in negative sentences
What happens at Stage 3?
36-42 months
MLU= 2.5-3.0
Uses past tense and possessions
Conjunctions used regularly
What happens at Stage 4?
40-46 months
MLU= 3.0-3.75
Use of a, the and verbs
Uses aren’t, isn’t, doesn’t and didn’t
Asks yes and no questions
What happens at Stage 5?
