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Speech and Language Developmental Scale

Age (months)
Receptive Language
Expressive Language

0-3
Startle to loud noise
Attends to voices

Random vocalizing
Coos

3-6
Turns toward voice
Anticipates feedings

Babbles, Laughs
Vocalizes with intonation

6-9
Attends to pictures
Responds to sound not visible
Attends to singing

Vocalizes 2 syllables
imitates syllables
Sings along with songs

9-12
Gives objects upon request
Understands simple questions
Looks at objects named
Responds to “no”

says “mama” or “dada”
imitate non-speech sound
says one or two words
Vocalizes with intent

12-15
Identifies 3 body parts
Shows use of objects
ID pictures

imitates animal sounds
Shakes head “no”
Names objects

15-18
ID six body parts
Understands 50 words
ID by category
Chooses objects upon request
Uses 15 words
Asks “Whats that”
Asks for “more”
Imitates many words

18-21
ID clothing items
ID more pictures
Understands “come here”

Uses 2 word phrases
Imitates 3 word phrase
Verbalizes needs

21-24
follows novel command
Understands action words
Understands new words
Follows a 2-step command

uses 50-100 words
Refers to self by name
uses new words
uses plurals

24-27
understands size concepts
Understands the concept of 1
Uses toys appropriately

uses 3 word phrase
Uses action words
Asks for assistance
 

27-30
Responds to simple questions
ID object by function
Understands location phrases

Names 1 color
Uses negatives
uses 2 sentence types

30-33
Understands the concept of all
Follows comples commands
Understands action words

Answers Y/N questions
Uses prepositions
States gender

33-36
ID parts of an object
Responds to wh___ questions
ID 7 colors
Understands descriptive concepts

Counts to 5
Uses verb forms
Uses possessives