29. The results of a research study indicate that children who spend more time on social...

29. The results of a research study indicate that children who spend more time on social media tend to have lower self-esteem. The correlation between these two variables (i.e.time spent on social media and self-esteem) is an example of ________________.

A. correlation near zero.
B. positive correlation
C. negative correlation

31. The strongest possible, positive Person’s correlation between two variables is _______.

A. r = 10.00
B. r = 1.00
C. r = 0.00
D. r = -1.00
E. r = -10.00
F. Not enough information to answer the question

32.If a researcher measured a person’s shoe size and self-reported anxiety, what kind of correlation is most likely to be revealed between these two variables (i.e., what correlation would you expect to find between persons’ shoe size and anxiety)?

A. A correlation near 1.00.
B. A moderate negative correlation.
C. A correlation near 0.00.
D. A moderate positive correlation.
E. A correlation near -1.00.

35. Suppose a researcher found that there is a significant correlation between intensity of physical exercise and alcohol drinking, r(100) = -0.40. Based on this finding, what percent (or proportion) of variability in alcohol drinking is accounted for by the intensity of physical exercise?

A. 16% (or 0.16)
B. 60% (or 0.60)
C. 4% (or 0.04)
D. -40% (or - 0.40)
E. 40% (or 0.40)
F. 84% (or 0.84)

Expert Solution

29. The results of a research study indicate that children who spend more time on social media tend to have lower self-esteem. The correlation between these two variables (i.e.time spent on social media and self-esteem) is an example of .

C. negative correlation

31. The strongest possible, positive Person’s correlation between two variables is _______.

B. r = 1.00

32.If a researcher measured a person’s shoe size and self-reported anxiety, what kind of correlation is most likely to be revealed between these two variables (i.e., what correlation would you expect to find between persons’ shoe size and anxiety)?

C. A correlation near 0.00

35. Suppose a researcher found that there is a significant correlation between intensity of physical exercise and alcohol drinking, r(100) = -0.40. Based on this finding, what percent (or proportion) of variability in alcohol drinking is accounted for by the intensity of physical exercise?

A. 16% (or 0.16)

orchestra answered 2 years ago

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