Multiple Choice
A 3-month-old and a 15-month-old infant both complete the norm-referenced Bayley Scales of Infant Development-II. The 3-month-old obtains a standardized score of 52; the 15-month-old obtains a standardized score of 51. Standardized scores have a mean of 50, and a standard deviation of 10. What do these results suggest about the children's performance?
A) A developmental delay in the 3-month-old infant.
B) A developmental delay in the 15-month-old infant.
C) Both children passed or failed mostly the same items on the assessment.
D) Both children seem to be developing adequately.
Correct Answer:
Verified
Correct Answer:
Verified
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