Speech & Language Developmental Norms

Speech and language development correlates with longitudinal research based milestones.

Here is a listing of general milestones. Children should attain milestones within a two to four month range around the milestone. Failure to meet milestones may be indicative of a delay or a disorder.

Hearing and Understanding Talking
Birth – 3 Months
  • Startles to loud sounds
  • Quiets or smiles when spoken to
  • Seems to recognize your voice and quiets if crying
  • Increases or decreases sucking behavior in response to sound
  • Makes pleasure sounds (cooing, gooing)
  • Cries differently for different needs
  • Smiles when sees you
4 – 6 Months
  • Moves eyes in direction of sounds
  • Responds to changes in tone of your voice
  • Notices toys that make sounds
  • Pays attention to music
  • Babbling sounds more speech-like with many different sounds, including p, b and m
  • Vocalizes excitement and displeasure
  • Makes gurgling sounds when left alone and when playing with you
7 – 12 Months
  • Enjoys games like peekaboo and pat-a-cake
  • Turns and looks in direction of sounds
  • Listens when spoken to
  • Recognizes words for common items like “cup”, “shoe,” or “juice”
  • Begins to respond to requests (e.g. “Come here” or “Want more?”)
  • Babbling has both long and short groups of sounds such as “tata upup bibibibi”
  • Uses speech or noncrying sounds to get and keep attention
  • Imitates different speech sounds
  • Has one or two words (bye-bye, dada, mama). although they may not be clear
1 – 2 Years
  • Points to a few body parts when asked.
  • Follows simple commands and understands simple questions (“Roll the ball,” “Kiss the baby,” “Where’s your shoe?”).
  • Listens to simple stories, songs, and rhymes.
  • Points to pictures in a book when named.
  • Says more words every month.
  • Uses some one- or two- word questions (“Where kitty?” “Go bye-bye?” “What’s that?”).
  • Puts two words together (“more cookie,” “no juice,” “mommy book”).
  • Uses many different consonant sounds at the beginning of words.
2 – 3 Years
  • Understands differences in meaning (“go-stop,” “in-on,” “big-little,” “up-down”).
  • Follows two requests (“Get the book and put it on the table”).
  • Has a word for almost everything.
  • Uses two- or three- word “sentences” to talk about and ask for things.
  • Speech is understood by familiar listeners most of the time.
  • Often asks for or directs attention to objects by naming them.
3 – 4 Years
  • Hears you when you call from another room.
  • Hears television or radio at the same loudness level as other family members.
  • Understands simple “wh” (who, what,where,why) questions.
  • Talks about activities at school or at friends’ homes.
  • Speaks clearly enough that people outside of the family usually understand his or her speech.
  • Uses a lot of sentences that have four or more words.
  • Usually talks easily without repeating syllables or words.