Micah developed a psychological measure intended to assess a person's level of conscientiousness. However, after several pilot studies of the psychological measure it appears that the measure actually assesses a person's level of obsessiveness. Micah's conscientiousness measure would best be described as:
A) not reliable for the intended purpose.
B) not valid for the intended purpose.
C) reliable for the intended purpose.
D) valid for the intended purpose.

Question

Quizplus · Accepted Answer

The measure is not valid for the intended purpose because it does not accurately assess what it is supposed to measure (conscientiousness), instead assessing something else (obsessiveness). Validity refers to the accuracy of a test in measuring what it is intended to measure.

Micah Developed a Psychological Measure Intended to Assess a Person's