When measuring a particular psychological trait,the term error variance refers to
A) the degree to which impression management may influence the obtained score.
B) the variations in score possible if another instrument was employed.
C) the component of a test score attributable to sources other than the trait.
D) All of these

Question

Quizplus · Accepted Answer

Error variance refers to the portion of a test score that is due to factors other than the trait being measured, such as measurement errors, situational factors, and other extraneous factors. Choice A refers to social desirability bias, which is a type of response bias and not the same as error variance. Choice B pertains to the issue of construct validity and the extent to which different measures of the same trait are correlated.

When Measuring a Particular Psychological Trait,the Term Error Variance Refers