To say language is an adaptation is to say it developed through:
a. cultural advance
b. learning
c. natural selection
d. cognition
C
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Why would one conduct a lab (IV)-field (DV) study?
A) It maximizes control over both the independent and dependent variable. B) It minimizes subject reactivity. C) It allows the researcher insight to how well a manipulation influences behavior in the real world. D) Although external validity is significantly reduced, such a study has high internal validity.
Which of the following is true of amphetamines?
a. Psychological dependence on amphetamines is rare. b. Amphetamine users do not show an abstinence syndrome when they stop usage. c. High doses can cause delusions, hallucinations, and insomnia. d. Amphetamine users do not suffer the "crash" experience that cocaine users typically report of when the drug wears off.