Question

A research study that produces a correlation coefficient of -0.90 indicates __________ relationship between variables

Answer 1

Negative:

Positive correlation: If the increase of one variable causes an increase in the other.

Negative correlation: if one variable increases and it causes a decrease in the other.

Your case implies a very high negative correlation.

Answer 2

strong negative linear

Step-by-step explanation:

Given two random variables X and Y, the correlation coefficient measures the linear relationship of X and Y. When the correlation coefficient is exactly +1, we have a perfect positive linear relationship and when the correlation coefficient is exactly -1, we have a perfect negative linear relationship. The lowest value the correlation coefficient can take is -1, and the highest value the correlation coefficient can take is +1. Therefore, when the correlation coefficient is -0.90 we have a strong negative linear relationship.