Which of the following sexually transmitted diseases flares up into open sores on the skin at the point of infection?
A. Gonorrhea
B. Syphilis
C. Herpes
D. Human papillomavirus (HPV)
Answer: C
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What can we conclude about the topic of unwanted pregnancies?
a. Stronger "just say no" messages against sexual activity would substantially reduce the number of pregnancies. b. If contraceptives were mentioned less often, the number of unwanted pregnancies would clearly decrease. c. Many women do not think that they, personally, are likely to get pregnant. d. The cost and availability of contraception are no longer factors that contribute to unwanted pregnancy.
By definition, reliable measures ____; valid measures ____
a. are manipulated by the experimenter; are not manipulated b. measure what they are supposed to; are consistent c. are consistent; measure what they are supposed to d. are not manipulated by the experimenter; are manipulated
Experimental design is generally strong against selection-history threats
a. True b. False Indicate whether the statement is true or false
To test the hypothesis, "Anxiety hurts performance," anxiety would be the ____ variable and performance would be the ____ variable
a. dependent; independent b. independent; dependent c. confounding; depending d. independent; confounding