Elizabeth was conducting a study using ________. With this technique, the researcher puts children into a situation that is designed to elicit behavior of interest, and then records the children’s responses

Physical aggression decreases during middle childhood except for __________________where

aggression remains high. a. cross-sex groups b. younger boys c. older boys d. all-boy groups regardless of age

What kind of people can hear higher frequencies of sound than others can?

a. People accustomed to hearing loud sounds hear higher frequencies than others do. b. Well-educated people hear higher frequencies than uneducated people do c. Children hear higher frequencies than anyone older can. d. Young adults hear higher frequencies than people older or younger.