A measure is valid when it:
A) Cannot be "psyched out" by the respondent
B) Corresponds to an accepted dictionary definition
C) Yields the same score when applied to the same phenomena
D) Relies on sophisticated instruments
E) Measures what the researcher intends to measure

Question

Quizplus · Accepted Answer

A measure is considered valid if it measures what the researcher intends to measure. The other options, such as "cannot be psyched out" and "corresponds to an accepted dictionary definition" are not necessarily indicators of validity. Likewise, reliance on "sophisticated instruments" is not always necessary for a measure to be valid. The only necessary condition for a measure to be valid is that it measures what it is supposed to measure.

A Measure Is Valid When It