A basic statistical principle of scientific research is that correlation __________.
A. indicates causation
B. does not imply causation
C. implies causation if it is significantly positive
D. implies causation if it is significantly negative
Answer: B
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The data for a chi-square test consist of ___________
a. numerical scores c. ranks b. non-numerical categories d. frequencies
What is likely to occur for men following widowhood?
a. The majority of men remarry. b. The majority of men die within 6 months of their spouse. c. The majority of men start a new business. d. The majority of men begin an exercise program.
When you are meditating, you:
a. think about the problems bothering you. b. say a mantra over and over in your mind. c. try to keep certain thoughts out of your mind. d. all of these.
How long does it take before current iconic memories are replaced with new images?
a. Almost immediately b. 2-4 seconds c. 4-8 seconds d. 8-15 seconds