The following data concerns energy expenditure and perceived pain (10-point Likert scale, where 10 = worst possible pain and 0 = no pain at all) from five cyclists completing a stage in the Tour de France. Complete the following table and answer the question below.
Participants
1
2
3
4
5
Mean
SD
Energy Expenditure (kcal)
7100
5750
6520
5590
6010
Residual
Pain (0 – 10)
10
6
9
5
7
Residual
Calculate the r-value (by hand) between energy expenditure and pain. You will be required to calculate the covariance first.
A. r = .98
B. r = .90
C. r = .88
D. r = .80
Answer: A
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