Which measure lacks both reliability and validity?
A)scholastic aptitude as measured by the score on an SAT test
B)happiness as measured by heart beats per minute
C)intelligence as measured in terms of birth order
D)class performance as measured by randomly picking a grade out of a hat

Question

Quizplus · Accepted Answer

Randomly picking a grade out of a hat lacks both reliability and validity as it is completely arbitrary and does not accurately measure a student's knowledge or abilities.

Which Measure Lacks Both Reliability and Validity