A rank correlation coefficient is to be calculated for a collection of paired data. The values lie between -10 and 10. Which of the following could affect the value of the rank correlation coefficient? A: Multiplying every value of one variable by 3
B: Interchanging the two variables
C: Adding 2 to each value of one variable
D: Replacing every value of one variable by its absolute value
A)A
B)C
C)D
D)B

Question

A rank correlation coefficient is to be calculated for a collection of paired data. The values lie between -10 and 10. Which of the following could affect the value of the rank correlation coefficient? A: Multiplying every value of one variable by 3 
B: Interchanging the two variables 
C: Adding 2 to each value of one variable 
D: Replacing every value of one variable by its absolute value
A)A
B)C
C)D
D)B

Quizplus · Accepted Answer

Replacing every value of one variable by its absolute value can affect the rank order of the data, thus affecting the rank correlation coefficient.

A Rank Correlation Coefficient Is to Be Calculated for a Collection