What is the most common means of contracting HIV among men?
a) injecting-drug use
b) heterosexual contact
c) man-man sexual contact
d) transfusion of infected blood
C
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Researchers looking at the relation between locus of control and health sometimes fail to find the predicted results. Subsequent research determined that this may be because the researchers failed to consider the participants'
A. gender. B. age. C. health history. D. reinforcement value for good health.
The hormone that plays an important role in regulating menstruation and preparing the uterus for a fertilized egg is
a. testosterone. c. progesterone. b. estrogen. d. dehydroepiandrosterone (DHEA).
According to your textbook, we can conclude which of the following regarding the effect of teacher's expectations on school children's performance?
a. Teacher's expectations alone can cause a student to perform poorly. b. Teacher's expectations are usually inaccurate. c. Teacher's expectations alone can cause a student to perform well. d. Teacher's expectations can be fulfilling but not necessarily inevitable.
Regarding the development of PTSD,
a. genetics is responsible as indicated by the presence of the COMT enzyme that destroys catecholamines. b. the environment produces individuals who are more likely to experience PTSD as evidenced by the fact that people who experience more traumatic events are more likely to be affected. c. there appears to be an interplay between genetics and environment. d. the Val158Met polymorphism is responsible.