Newel, in a highly influential paper, argues that three components of motor skills contribute to their performance, and that any completely satisfactory explanation of motor skills must take all three components into consideration. The three components of all motor skills include the ____________, ____________, and ____________. (All three spaces must be filled in correctly for a correct answer.)

The fact that language is usually related most closely to the left hemisphere explains why ______

a. the left hemisphere is usually larger than the right b. stroke victims with paralysis on the left side of the body may have severe speech problems c. damage to the left hemisphere may cause language disorders d. the right hemisphere is usually larger than the left

The basic aspects of grammar are mastered by most children by age

a. 3 years old. b. 6 years old. c. 9 years old. d. 11 years old.