A limitation of using matching rather than random assignment to form groups in a between-subjects experiment is that matching ____
a. requires another level of work
b. increases error due to participant differences
c. requires at least twice as many participants
d. increases the need for control groups
a
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What does the American Academy of Pediatrics recommend to limit the chances of SIDS?
A. back-to-sleep guidelines B. nightly autostimulation C. heavy blankets in the crib D. frequent infant naps throughout the day
Yana's reaction to her mother's refusal to let them go sledding outdoors was to think, "I didn't really want to sled anyway-it's too cold." Her twin brother's reaction was to storm around the house for several minutes before he calmed down. In Denham's model of emotion regulation, Yana's reaction would be labeled __________, whereas her brother's reaction would be labeled __________.
A. calm; angry B. impulsive; reflective C. cognitive coping; behavioral coping D. emotional coping; behavioral coping
Sandy missed class because she is sick, but Luis did attend the lecture. Sandy asks Luis if she can borrow his notes. If Luis considers Sandy's situation from her point of view and decides to offer help without expecting some form of payback, he is most likely
a. invoking the norm of reciprocal altruism. b. operating under an altruistic motive. c. operating under an egoistic motive. d. following the negative state relief model.
When a particular inherited characteristic is controlled more by one gene of a pair than by the other, the stronger gene is called
dominant. phenotypic. recessive. genotypic.