A 6-year-old child with an intelligence quotient (IQ) of 50

Discussion in 'USMLE STEP 1' started by Guest, Mar 15, 2009.

  1. Guest

    Guest Guest

    A 6-year-old child with an intelligence quotient (IQ) of 50 is most likely to be able to do which of tire following?
    (A) Read a sentence
    (B) Identify colors
    (C) Copy a man picture
    (D) Ride a 2-wheeled bicycle
    (E) Understand the moral difference between right and wrong
  2. Guest

    Guest Guest

    -B. Using the intelligence quotient (1Q) formula [i.e., mental age (MA)/chronological age (CA) x 100 = 1Q] the MA of this child is 3 years (MA/6 X 100 = 50). Like a normal 3-year-old child, someone with a mental age of 3 years can identify colors but cannot read, copy a triangle, ride a 2-wheeled bicycle, or understand the moral difference between right and wrong.

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