A sample technique in which participants have an equal chance of being selected for a particular intervention group is referred to as

In pregnant women, cocaine restricts placental blood flow and oxygen supply to the fetus. Research suggests that the brain systems most damaged by cocaine are those responsible for

a. motor development. b. speech. c. controlling attention. d. vision.

In Watson's famous experiments with Little Albert, he taught Albert to fear a ______

a. dog b. rat c. cat d. dove