Cigarette smoking during pregnancy:
a. has no long-term adverse effects.
b. is not toxic to the developing fetus since the placenta protects it from harm.
c. is associated with low-birth weight and increased risk of stillbirth and infant mortality.
d. is only a problem if the woman smokes; secondhand smoke holds no risk for the developing fetus.
C
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According to Adler, restless sleepers:
a. are those who sleep on their stomach. c. are those who curl up in a fetal position. b. sleep with their arms stretched out. d. sleep flat on their back.
Jeff wants to understand the impact of terror on one's ability to maintain cognitive flexibility. Of course, he cannot randomly assign some people to be terrorized. To simulate terror, Jeff has participants in the "terror" condition imagine their own death in a great deal of detail. Jeff is conducting a(n) experiment
a. natural b. single-subject c. longitudinal d. analogue
At a minimum, a balanced placebo design arranges how many unique test conditions?
A) two B) three C) four D) eight
Ecological validity can be threatened by:
a. experimenter bias. b. the Hawthorne effect. c. demand characteristics. d. all of these