Recall that Cialdini and his colleagues (1990) found that students were least likely to toss handbills to the floor when there was a piece of discarded watermelon rind on the floor,
compared to experimental conditions in which the floor was completely free of litter or when handbills were already scattered on the floor. One single piece of watermelon rind significantly reduced littering because it served to remind participants
a. of descriptive norms.
b. of injunctive norms.
c. that a littering is a kind of social dilemma.
d. that litter costs time and money to remove.
Answer: A
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Which consideration is most relevant to ensuring that any differences one obtains after the experimental manipulation of a study have been produced only by that manipulation?
a. Statistical interactions b. External validity c. Construct validity d. Control over experimental procedures
It is possible for a person to have respiration and a heart beat even when there is no cortical functioning of the brain
a. True b. False Indicate whether the statement is true or false
Researchers have found that somatic symptom disorders cluster among
a. male family members. b. female family members. c. neighborhoods. d. cultures.
Felipe has a psychological disorder, and his doctor has prescribed chlorpromazine to help reduce the severity of Felipe's symptoms. In this case, Felipe most likely has:
a. negative symptoms of schizophrenia b. positive symptoms of schizophrenia c. bipolar disorder d. an anxiety disorder