A university recently banned the use of plastic water bottles on campus in an effort to be ecofriendly. A psychologist at the university is interested in the attitudes of the students towards this ban. She obtains a list of all the students enrolled in the university and arbitrarily selects 100 students for a survey designed to assess their opinions on the ban. In this study, which method has the
psychologist used to select students for the survey?
A) random sampling
B) random assignment
C) matched samples technique
D) naturalistic observation
A) random sampling
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Sofia's research yielded results that are consistent with a hypothesis derived from a cognitive account of classical conditioning. Which conclusion is CORRECT regarding the theory?
A) The theory is proven. B) The theory may be disproven by subsequent research. C) The theory is unfalsified. D) The theory is statistically significant.
How do women's portraits on LinkedIn accounts differ from men's portraits on their LinkedIn accounts?
A. Women are likely to show emotion, whereas men are likely to show their status. B. Women are likely to display professional photographs, whereas men show amateur ones. C. Women's facial images tend to be larger than those of men. D. Women are likely to show a three-quarter side view, whereas men are likely to show a full-face image.
A circadian rhythm lasts about __________ hours.
A. 6 B. 12 C. 24 D. 48
Which of the following statements about friendships in adolescence is true?
a) Adolescence is a time when ethnic boundaries in friendships often become sharper. b) Ethnicity is not a factor for friendships in adolescence. c) Selective association ends in middle childhood and does not play a role in adolescence. d) Friends spend less time together during adolescence than they did in childhood.