In comparison to one-way experiments, factorial experiments
a. are more limited in the number of possible independent variables.
b. are analyzed using the ANOVA.
c. provide information about interactions between and among variables.
d. are more time consuming and thus less useful.
c
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In 2007, Alex the African gray parrot died. He was an important part of the work conducted in _____
A) cognition and communication research B) animal genetics C) motivation D) recall and recognition
Paul volunteers for a study on attitudes about dating. When he arrives at the laboratory, he notices a book on the researcher's desk called Nonverbal Communication in Dating Couples
Paul concludes that the study is about nonverbal communication, and in his answers to questions he tries to be helpful by emphasizing his skills in this area. The way Paul responded to the questions is an example of a threat to validity called a) reactivity. b) expectancy effects. c) demand characteristics. d) nonrandom assignment.