• Does not show interest in games like “peek-a-boo” or “patty cake” by 9 months. 
  • Does not engage in turn taking activities with facial expression or eye gaze by 8 months
  • Does not crawl 
  • Drags one side of body while crawling (for over one month) 
  • Does not stand when supported 
  • Does not sit steadily by 10 months. 
  • Does not babble by 10 months (dadada, bababa, mamama) 
  • Does not search for objects that are hidden (object permeance) by 10-12 months
  • Does not point and/or use gestures (waving hi/bye, shaking head no/yes, etc) by 12 months 
  • Does not coo or babble during play by 12 months 
  • Does not imitate large motor movements or imitate vocalizations by 12 months 
  • Does not have at least one word (ex. mama) that is used consistently by 13 months
  • Does not understand simple words like “mama” or “juice” by 12 months


This list is to be used as a resource only. If you have any concerns based on this list, please contact your child’s pediatrician. An evaluation of their development may need to be done.

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