In testing for HIV infection, an ELIZA test detects
A) the number of CD4 cells circulating in the blood.
B) the presence of antibodies to HIV in the blood.
C) the amount of virus circulating in the blood.
D) the amount of virus in semen or vaginal fluids.
B
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Marsh and Kit-Tai Hua's 2003 study on the "big-fish-little-pond effect" found that a student's academic self-concept is less positive when students are
a. gifted. b. intellectually disabled. c. in a school with a lot of high achievers. d. in a school with a lot of low achievers.
A group of emotional, cognitive, or behavioral symptoms that cause significant distress or significant problems is a(n):
a. mental disorder. b. deviation. c. stressor. d. abnormal concept.
Researchers believe that individuals with higher work centrality scores will be found in cultures that place a high value on __________ and __________
a. conservatism; autonomy b. egalitarianism; hierarchy c. mastery; hierarchy d. hierarchy; conservatism
The most common teratogen worldwide is ________
a. malnutrition b. rubella c. alcohol d. tobacco