Consuela wants to run an experiment testing the effects of time of day on cognitive ability. Consuela is the experimenter for all the participants randomly assigned to the "morning" condition, and her research assistant Rick is the experimenter for the "evening" condition. What is the confound in this study?
A) cognitive ability
B) time of day
C) gender of the experimenter
D) random assignment of participants
Answer: C
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In order to prevent STDs, the textbook mentions all of the following EXCEPT
a. Take vitamin supplements, especially B-12 supplements. b. Inspect your partner's sex organs before sexual contact. c. Abstain from sexual contact if you have doubts about potential harmful effects. d. Use latex condoms since "natural" condoms provide less protection. e. Get regular medical check-ups to detect disorders you may not be aware of.
Gary takes great pleasure in torturing animals. With this information, Gary's behavior would be classified as abnormal according to all but which of the following criteria?
A. Statistical infrequency criterion B. Norm violation criterion C. Personal suffering criterion D. The practical approach
Which type of glia is responsible for forming myelin in the CNS?
A. astrocytes B. oligodendrocytes C. Schwann cells D. microglia
Research by Rovee-Collier (1999) suggests that infants do not generalize the associations they make between their own kicking and a jiggling mobile when they are ___
a. tested in a novel context b. exposed to several similar mobiles prior to testing c. both a and b d. neither a nor b