Child Development at 15 Months

Posture & Large Movements

  • Walks unevenly with feet wide apart, arms slightly flexed and held above head or at shoulder level to balance.
  • Starts alone, but frequently stopped by falling or bumping into furniture.
  • Lets himself down from standing to sitting by collapsing backwards with bump, or occasionally by falling forward on hands and then back to sitting.
  • Can get to feet alone.
  • Crawls upstairs.
  • Kneels unaided or with slight support on floor and in pram, cot and bath.
  • May be able to stoop to pick up toys from floor.

Vision & Fine Movements

  • Picks up string, small sweets and crumbs neatly between thumb and finger.
  • Builds tower of two cubes after demonstration.
  • Grasps crayon and imitates scribble after demonstration.
  • Looks with interest at pictures in book and pats page.
  • Follows with eyes path of cube or small toy swept vigorously from table.
  • Watches small toy pulled across floor up to 12 feet.
  • Points imperiously to objects he wishes to be given.
  • Stands at window and watches events outside intently for several minutes.
  • Watches and retrieves rolling balls of 21/8 inches at 10 feet.

Hearing & Speech

  • Jabbers loudly and freely, using wide range of inflections and phonetic units.
  • Speaks 2–6 recognisable words and understands many more.
  • Vocalises wishes and needs at table. Points to familiar persons, animals, toys, etc., when requested.
  • Understands and obeys simple commands (eg. Shut the door, give me the ball, get your shoes).
  • Baby test 41/2–6 feet.

Social Behaviour & Play

  • Holds cup when adult gives and takes back.
  • Holds spoon, brings it to mouth and licks it, but cannot prevent its turning over.
  • Chews well
  • Helps more constructively with dressing.
  • Indicates when he has wet pants.
  • Pushes large wheeled toy with handle on level ground.
  • Seldom takes toy to mouth.
  • Repeatedly casts objects to floor in play or rejection, usually without watching fall.
  • Physically restless and intensely curious.
  • Handles everything within reach. Emotionally labile.
  • Closely dependent upon adult’s reassuring presence.
  • Needs constant supervision to protect child from dangers of extended exploration and exploitation of environment.

Source: Reports on Public Health and Medical Subjects No 102. HMSO 1960, revised 1975.