One wants to find the correlation between social adjustment and achievement with the effects of intelligence controlled.The appropriate index to use is
A) correlation ratio.
B) tetrachoric correlation.
C) multiple correlation.
D) partial correlation.

Question

Quizplus · Accepted Answer

Partial correlation is the appropriate index to use in this scenario, as it allows for the effects of intelligence to be controlled for, in order to isolate the relationship between social adjustment and achievement. The other options (correlation ratio, tetrachoric correlation, and multiple correlation) do not allow for the effects of a third variable to be controlled.

One Wants to Find the Correlation Between Social Adjustment and Achievement