What is the best method by which to test the independence of two categorical variables?
a. A factorial ANOVA
b. A one-way ANOVA
c. Chi square test of independence
d. Comparing means
Answer: c. Chi square test of independence
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Kyle's friends never know what to expect when they visit him in the hospital. Sometimes he is elated and wildly optimistic-- filled with impractical plans about founding a computer business in space
Other times he is so dejected he just sits there saying nothing with tears running down his face. It seems like Kyle is experiencing __________ a) a social phobia. b) bipolar disorder. c) schizophrenia. d) a nervous breakdown.
Experiments on developmental changes in recall indicate that the memory span
a. shows a sudden qualitative change at adolescence. b. shows a sudden qualitative change just prior to the school years. c. gradually increases with age. d. does not change much with age.