The initials IRB stand for:

An experiment is conducted to test a new antianxiety drug. After taking the drug, 35 percent of the participants receiving the medication report less anxiety, compared to 36 percent of those taking a placebo. The researchers should conclude that _______

a. participants knew which group they were in. b. the medication itself probably has no real effect on anxiety. c. the drug actually increases anxiety. d. the drug is an effective treatment for anxiety.

Stephen Hawking is a theoretical physicist who is confined to a wheelchair and must "speak" by manually controlling a speech synthesizer due to Lou Gehrig's disease. Hawking's ability to continue to advance our understanding of the universe illustrates how our intelligence and thinking ability

a. is innate. b. would not be realized without learning being a continual process. c. is less important than our motivation to succeed. d. makes us adaptable to situations.