A researcher is investigating the effects of caffeine consumption on student writing performance. Because the researcher will evaluate both the speed of assignment completion and the number of grammatical errors, she will need to include more than one ____________ variable in her study
a. independent
b. dependent
c. confounding
d. extraneous
B
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Your brother has a daughter in early childhood who has an excessive degree of self-regulation. He is not quite sure if he should be happy, since she very rarely has any difficulties, or if he should be concerned
What would you tell him? a. He should be concerned, because overcontrol is associated with depression and anxiety when she gets older. b. He has nothing to be concerned about. Overcontrol is associated with extraordinary academic success. c. He should not be concerned; she will lighten up on her own soon. d. He should be glad; a friend of yours has a child who has absolutely no self-regulation and that child is very hard to control.
Four-year-old Javier goes to the circus and sees animals that he has never seen before. When asked about the event a year later, Javier is most likely to recall
A. a verbatim account of the event. B. the overall experience of the event. C. only the emotional parts of the event. D. nothing about having gone to a circus.
Gonorrhea is caused by a virus.
Answer the following statement true (T) or false (F)
When reinforcement follows a predetermined number of responses, it is a _____ schedule of reinforcement, compared to a _____ schedule in which reinforcement follows the first response after a predetermined period of time has elapsed.
A. Fixed ratio; fixed interval B. Variable ratio; fixed interval C. Fixed interval; fixed ratio D. Partial; continuous