If the hypothesis shows no direction,what type of correlation coefficient should be used?

A) partial correlation
B) absolute value
C) one-tailed
D) two-tailed

Partial Correlation

A numerical index that reflects the relationship between two variables with the removal of the influence of a third variable (called a mediating or confounding variable).

Absolute Value

A numerical value without regard to its sign, often represented as the distance of a number from zero on the real number line.

One-tailed

A one-tailed test in statistics is a hypothesis test where the region of rejection is on only one side of the sampling distribution, focusing on a direction of interest.