Mary is conducting an experiment to study the effect of caffeine on test scores. What kind of variable is caffeine in this study?
A. Independent
B. Dependent
C. Confounding
D. Experimental
Answer: A
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Which organ keeps teratogens from reaching a developing fetus?
A. umbilical cord B. placenta C. amniotic sac D. uterus
Belief persistence involves a tendency to:
a. draw a general conclusion based on a small number of instances b. only see objects and their potential uses in typical ways c. maintain an opinion, even when confronted with disconfirming evidence d. ignore base-rate information when estimating the likelihood of uncertain events
Regarding televised violence, which of the following statements is FALSE?
a. In recent years, the violent crime rate among youth has significantly increased, even as the sale of violent video games has decreased. b. Younger children are more likely to be influenced by televised violence because they do not fully recognize that media characters and stories are fantasies. c. Experiencing media violence does not invariably "cause" any given person to become more aggressive but makes aggression more likely. d. Personality characteristics, family conflict, depression, and negative peer influences are factors that affect the chances that hostile thoughts will be turned into actions.
Meta-analysis combines data from a number of related studies instead of assessing each study's results separately
Indicate whether this statement is true or false.