is the extent to which differences in observed scale scores reflect true differences among objects on the characteristics being measured, rather than systematic or random errors.
A) Reliability
B) Generalizability
C) Validity
D) None of the above

Question

Quizplus · Accepted Answer

Validity refers to the extent to which a test measures what it claims to measure, reflecting true differences rather than errors.

Is the Extent to Which Differences in Observed Scale Scores