Why are control groups included in experiments?
A. to rule out the idea that something other than experimental manipulation produced the observed results in an experiment
B. to show that when two variables in an experiment are strongly correlated, they have a cause-and-effect relationship
C. to determine whether two variables being investigated in an experiment are correlated
D. to ensure that participants are properly assigned to the groups in an experiment
Answer: A
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Which term refers to the basic sounds of language that can be combined to produce words and sentences?
A. symbols B. letters C. alphabet D. phonemes
One learns to do research by
a. Studying examples of research b. Reading about it in text books c. Doing research d. All of the above
Stress disrupts the performance of
A) tasks mediated by the hippocampus. B) most memory tasks. C) almost all avoidance tasks. D) most cognitive tasks. E) tasks mediated by the amygdala.
According to Piaget’s theory, humans are not born with the ability to ___.
a. suck on a pacifier b. mentally represent their mother’s face c. grasp their father’s finger when it comes in contact with their hands d. turn their heads toward a shaking rattle