What can regression analysis tell the researcher that correlation analysis alone cannot?
A) the strength of a relationship between variables
B) the direction of a relationship between variables
C) the probability that the relationship between variables within a research sample could have been produced by sampling error
D) the predicted value of an outcome variable if we know the value of a case's predictor variable.

Question

Quizplus · Accepted Answer

Regression analysis can provide information on the predicted value of an outcome variable based on the known value of a predictor variable. Correlation analysis can only provide information on the strength and direction of a relationship between variables. The probability of sampling error can be calculated through statistical testing regardless of whether regression or correlation analysis is used.

What Can Regression Analysis Tell the Researcher That Correlation Analysis