A researcher was investigating the relationship between the variables grades in high school - 6536

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A researcher was investigating the relationship between the variables grades in high school and grades in college. The investigator wanted to determine if a relationship existed and if so, to what extent. A regression analysis was perform on the data and the correlation value was r = .71. Based on this finding, which statement is correct?

A.   The researcher was able to explain about 71% of the variation in the problem by this variable.

B.   The researcher was able to explain about 50 percent of the variation in the problem by this variable.

C.   The researcher was able to explain about 36 percent of the variation in the problem by this variable.

D.   The researcher was able to explain about 80 percent of the variation in the problem by this variable.

Solution Description

A researcher was investigating the relationship between the variables grades in high school and grades in college. The investigator wanted to determine if a relationship existed and if so, to what extent. A