Dr. Smith is developing a new drug to treat headaches. To test this drug, she develops a study in which one group gets the new drug, and the other gets a placebo, or a fake pill. Dr. Smith measures whether headaches improve by giving each participant a survey each day. The drug is the ______ variable.
A. independent
B. dependent
C. response
D. optional
Answer: A
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Physiological measurement may also be used to assess
a. emotions. b. cognitions. c. overt behaviors. d. intentions.
Researchers who have replicated Piaget's basic observations of the development of object permanence have typically done which of the following?
a. used only-small-scale studies b. used the same procedures as Piaget did c. used greater experimental control than Piaget did d. studied infants with a smaller age-range than Piaget did
Defense mechanisms operate on an unconscious level as a means of reducing anxiety
a. True b. False
The binomial test can be used as an alternative to the chi-square test for goodness of fit provided the observed frequencies fit in exactly two categories
Indicate whether the statement is true or false