In a between-subjects experiment, when the process of assigning participants to the treatment conditions produces groups with different characteristics, the ____of the study is threatened
a. internal validity
b. external validity
c. reliability
d. accuracy
a
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Lightning is flashing around you, and you are running down the street for home. Your heart is pounding, your throat is dry, your hands are trembling, and you are sweating. Your reactions
a. were caused by the somatic nervous system. b. are innate, automatic, and nearly universal. c. will disappear as quickly as they originally occurred. d. are characterized by all of these statements.
Classical conditioning is generally strongest when the neutral stimulus is presented ____ the unconditioned stimulus by a few ____
a. ?before; seconds b. ?after; minutes c. ?before; minutes d. ?after; seconds
A new game show asks two strangers to negotiate with one another to determine whether they will split a shared prize or whether they will steal the prize only for themselves. If both decide to split, then prize money is split. If one decides to steal, then the stealer wins the entire prize. If both decide to steal, then no one wins. What does this exemplify?
A. the Prisoner's Dilemma B. the Ultimatum game C. rational economic thinking D. prospect theory
Researchers want to determine where brain region X projects to. To discover this, researchers can inject tracer into ________ axons from brain region X using ________ labeling.
A. afferent; retrograde B. efferent; retrograde C. afferent; anterograde D. efferent; anterograde