After obtaining the correlation between two variables,a researcher calculates a regression equation.This equation can be used to
A) predict a person's score on one variable when only the score on a second variable is known.
B) control third variables.
C) predict scores on a third variable of interest.
D) determine effect size.

Question

Quizplus · Accepted Answer

A regression equation can be used to predict a person's score on one variable when only the score on a second variable is known. It is based on the correlation between the two variables and is calculated to estimate the relationship between them. It is a useful tool in prediction modeling, and in understanding the strength and direction of the relationship between the two variables.

After Obtaining the Correlation Between Two Variables,a Researcher Calculates a Regression