A researcher correlates self-confidence measures with obesity rates and determines an r value of 0.8.What can the reviewer conclude when evaluating this research?
A) There is a 36% chance that variation in one score is the result of variation in the other score.
B) There is a 64% chance that variation in one score is the result of variation in the other score.
C) There is a 64% chance that variation in one score is the result of variation in something other than the other score.
D) There is a weak correlation between these two variables.

Question

Quizplus · Accepted Answer

Explained variance is a score that is r² which,in this case,is 0.64,or 64%.This means that there is a 64% chance that the variation in one score affects the variation in the other score.The other three options are incorrect statements.

A Researcher Correlates Self-Confidence Measures with Obesity Rates and Determines