child langugage development disorders

late language emergence

delay in language onset in children under 3yo without any other diagnosed disabilities or delays

language difference

a result of a variation of communication used by a group of individuals that reflects culture

developmental language disorder

when an individual has difficulty producing and understanding language without having brain damage, hearing loss, or an intellectual disability

how many children have DLD

7.5% of schoolchildren

what is a descriptive-developmental approach

focusing on language development rather than identifying the diagnosis

A

linguistic processing

b

lvl 3 linguistic level

c

lvl 2 motor level

d

speech physical system

e

auditory physical system

f

lvl 1 acoustic level

g

acoustic transmission

language form

phonology, morphology, syntax

language content

semantics

language use

pragmatics

level 1 evidence

randomized experimental research and includes meta-analyses

level 2 evidence

high quality, but nonrandomized experiments

level 3 evidence

well designed, non randomized experimental studies and case studies