Question

Question 104 pts

Dr. Song calculates a correlation coefficient of -.14 between the number or pizzas eaten and scores on a test of depression. How would you interpret the magnitude of this correlation coefficient?

This is a relatively weak correlation

Cannot be determined from this information

It is negative and therefore it cannot be significant

This is a relatively strong correlation

Answer 1

The value of r is always between +1 and –1. To interpret its value, see which of the following values your correlation r is closest to:

• Exactly –1. A perfect negative linear relationship

• –0.70. A strong negative linear relationship

• –0.50. A moderate negative linear relationship

• –0.30. A weak negative linear relationship

• 0. No linear relationship

• +0.30. A weak positive linear relationship

• +0.50. A moderate positive linear relationship

• +0.70. A strong positive linear relationship

Exactly +1. A perfect positive linear relationship

Here, r = -0.14 , therefore we can say that there is relatively weak correlation.