This document compares normal childhood developmental milestones to developmental milestones that may indicate a disability across five domains: language, cognitive, social/emotional, motor skills, and references. Key differences noted include delays in speaking first words, understanding simple instructions, engaging in pretend play, sitting steadily, walking, and difficulty performing tasks involving fine motor skills like holding a spoon compared to other children the same age. The document provides examples of behaviors at different ages that may help identify potential developmental disabilities requiring further evaluation.
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Developmental Comparison
1. DEVELOPMENTAL COMPARISON
Normal With Disability
LANGUAGE Responds to simple spoken requests
Uses simple gestures, like shaking head ¡°no¡±
or waving ¡°bye-bye¡±
Makes sounds with changes in tone (sounds
more like speech)
Says ¡°mama¡± and ¡°dada¡± and exclamations
like ¡°uh-oh!¡±
Tries to say words you say
Doesn¡¯t say single words like ¡°mama¡± or
¡°dada¡± by 8 months
Does not speak at least 15 words by 18
months
Does not use unique two-word phrases by age
2 (more milk, big dog, mommy help)
Persistent drooling or very unclear speech
Inability to communicate in short phrases
COGNITIVE Explores things in different ways, like shaking,
banging, throwing
Finds hidden things easily
Looks at the right picture or thing when it¡¯s
named
Copies gestures
Starts to use things correctly; for example,
drinks from a cup, brushes hair
Bangs two things together
Puts things in a container, takes things out of a
container
Lets things go without help
Pokes with index (pointer) finger
Follows simple directions like ¡°pick up the toy¡±
Doesn¡¯t search for things that she sees you
hide
Doesn¡¯t learn gestures like waving or shaking
head
Doesn¡¯t point to things
Does not follow simple one-step instructions by
24 mos.
No involvement in pretend play
Failure to understand simple instructions
Doesn't engage in fantasy play
Cannot understand prepositions ("put the cup
on the table"; "get the ball under the couch")
Cannot give his first and last name Does not
use plurals or past tense
SOCIAL AND EMOTIONAL Is shy or nervous with strangers
Cries when mom or dad leaves
Has favorite things and people
Shows fear in some situations
Hands you a book when he wants to hear a
story
Repeats sounds or actions to get attention
Puts out arm or leg to help with dressing
Plays games such as ¡°peek-a-boo¡± and ¡°pat-a-
cake¡±
Doesn¡¯t react to new environment and people
Does not seek out caregiver when stressed
Doesn¡¯t show interest in ¡°peek-a-boo¡± or ¡°patty
cake¡± by 8 months
Does not pay attention or stay focused on an
activity for as long a time as other children of
the same age
Focuses on unusual objects for long periods of
time; enjoys this more than interacting with
others
Avoids or rarely makes eye contact with others
2. Gets unusually frustrated when trying to do
simple tasks that most children of the same
age can do
Shows aggressive behaviors and acting out
and appears to be very stubborn compared
with other children
Displays violent behaviors on a daily basis
Stares into space, rocks body, or talks to self
more often than other children of the same age
Does not display a wide array of emotions
(anger, fear, happy, excited, frustrated)
MOTOR SKILLS Gets to a sitting position without help
Pulls up to stand, walks holding on to furniture
(¡°cruising¡±)
May take a few steps without holding on
May stand alone
Stands on one foot for 10 seconds or longer
Hops, somersaults
Swings, climbs
May be able to skip
Copies triangle and other geometric patterns
Draws person with body
Prints some letters
Dresses and undresses without assistance
Doesn¡¯t sit steadily by 10 months
Doesn¡¯t crawl
Can¡¯t stand when supported
Drags one side of body while crawling (for over
one month)
Cannot walk by 18 months
Has stiff arms and/or legs
Cannot hold and use a spoon or cup for eating
and drinking
Has a floppy or limp body posture compared to
other children of the same age
Has a very clumsy manner compared with
other children of the same age
Cannot grasp a crayon between thumb and
fingers Has difficulty scribbling Cannot copy a
circle Cannot stack 4 blocks Still clings or cries
when
REFERENCES
http://www.cdc.gov/ncbddd/actearly/milestones/milestones-1yr.html
http://ecdc.syr.edu/wp-content/uploads/2013/01/Developmental_checklists_Updated2012.pdf