Lewis Terman popularized the calculation of IQ as ____________________ age divided by chronological age multiplied by 100

Between the ages of 18 and 27, the average adult in the United States

buys a first house. has eight jobs. has two to three children. has a 20 percent chance of divorce.

Mahori was strapped to his mother's back for the first year of his life. Which of the following statements is true?

a. Mahori's parents gave him extra "tummy time" to develop his muscles. b. Mahori's motor development will be similar to an American child if they are compared during kindergarten. c. The sequence of his motor development will be different from that of babies in cultures where walking during infancy is actively encouraged. d. When it comes to Mahori's motor development, environment plays a stronger role than genetics.