What 3 early developing morphemes can we expect by 30 months and before 3 years?
What 4 later developing morphemes can we expect by ~4 years and ~4 years and a couple of months?
When do we expect two-word semantic relationships and what are some examples?
~12 months - 2 years
Agent + action
Action + object
Action + locative
When do we expect three-word semantic relationships and what are some examples?
~20 months - 2 years
Agent, action + object
Agent, action + locative
What are 4 early, simple sentence structures and when do we expect them?
~2;6 - 3;0 years
What is a CLAUSE
a clause is a group of words containing a subject and a verb
What is a PHRASE
a phrase does not have its own subject and verb (e.g., a prepositional phrase)
At what age do we expect a child’s FIRST WORD?
12 months old
At 12 months old, how many words should the child UNDERSTAND?
~22-40 words understood
About what age does a child produce ~50 words (typical range 5-50)
18 months
About how many words should a 18 month old UNDERSTAND?
~115-175 words
When a child produces 50 words, what can we expect next?
2 word combinations (18 months old)
At some point, vocabulary is NOT a reliable measure of language development. Why is this the case?
Variations in the child’s vocab comprehension and expression can be due to many factors:
Child is multilingual
Family’s culture a values - some families value more limited verbal output (respect)
Hearing loss/history of otitis media
Disabilities/diagnoses (e.g., Down syndrome)
What are protowords?
How do protowords influence early words?
Protowords = a child’s own word that they use in place of an adult word
- must have a phonetic relationships
- must be used consistently
- must occur in the presence of a referent
First 50 words = ~30% protowords
Most protowords are nouns
As a child produces more words, the use of protowords goes down
How do we measure morphosyntax?
What examples might constitute 2 morphemes?
Possessive nouns = Gabe’s
Plural nouns = cookies
3rd person singular = walks
Regular past tense verbs = walked
Present progressive verbs = walking
What examples might constitute 1 morpheme?
Compound words = Birthday
Proper names = Jimmy John’s
Ritualized reduplications = night-night
Reoccurrences of a word for emphasis = No! No!
Irregular past tense verbs = went
Diminutives = doggie
Auxiliary verbs = is, have, gonna
Irregular plurals = men, feet
What examples could constitute 0 morphemes
Dysfluencies (except for the complete form) = c-c-c-c-candy
Fillers = uhm, uhhh, ahh
What are pragmatics (social communication)?
The social use of language, communicative functions, discourse skills, and flexibility to modify language for an audience
What does gesture look like for late language emergers?
What does gesture look like in DLD?
What is Late Language Emergence
-a delay in language onset with no other diagnosed disabilities or developmental delays in other cognitive or motor domains.
-LLE is diagnosed when language development trajectories are below age expectations
-children from 2 to 4 years of age
-old terminology “late talkers”
How would you describe DLD to a parent?
DLD is a significant difficulty in learning, understanding, and using language.
You might see DLD affect your child’s speaking, listening, reading, and writing
What is the difference between delay and disorder?
Delay = implies that language development is slow (overall) and that the child might catch up
Disorder = implies that language development is deviated in rate, sequence, synchrony