Which of the following is NOT a defining characteristic of a psychological experiment?
a. it involves objective observation
b. variables are manipulated in a highly controlled environment
c. it always takes place in a laboratory
d. one or more factors are varied while the rest are held constant
C
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A metacrawler or meta search engine works by
a. remembering your search history to allow more efficient searches in the future. b. submitting your search query to several different search engines and including all of the results. c. allowing you to research multiple topics in a single search. d. finding and storing new information related to your topic for days after your original search
The annual income of the average convention delegate is __________ the annual income of the average voter
a. much higher than b. slightly higher than c. about the same as d. slightly lower than