Katie wonders when she will first be able to hear her fetus’s heartbeat through a stethoscope. You tell her that this should happen by the________
A) fourth week of pregnancy
B) third month of pregnancy
C) end of the second trimester
D) beginning of the third trimester
Answer: B
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When Sarah was 14 years old, she took a virginity pledge. Now, four years later, she has had sexual intercourse. Based on the study by Rosenbaum, what would be a typical response by Sarah regarding her sexual activity?
A. She was serious about the pledge and has much guilt about breaking it. B. She readily dismisses the virginity pledge, confessing she really wasn't serious about it at the time. C. She denies ever having made the virginity pledge. D. She regrets ever having made the virginity pledge, but doesn't feel guilty about it.
Ritalin and Adderall, two medications prescribed for the treatment of attention deficit hyperactivity disorder (ADHD), act by ____
a. ?decreasing norepinephrine and increasing dopamine activity b. ?increasing norepinephrine and decreasing dopamine activity c. ?decreasing norepinephrine and decreasing dopamine activity d. ?increasing norepinephrine and increasing dopamine activity
A major disadvantage of between-subjects designs is that
a. the effect of one treatment may alter the effectiveness of later treatments. b. participant differences may obscure treatment effects. c. one must employ fewer independent variables. d. one can use only a single independent variable.
Scientists are expected to submit their results to professional journals, which then send the findings to experts for evaluation before publication. This process is called ________
a. replication. b. publish or perish. c. peer review. d. falsification.