A reliable operational definition is
A) never valid.
B) not always valid.
C) always valid.
D) valid as long as the procedure used in the study is valid.
E) valid only when the hypothesis is valid.

Question

Quizplus · Accepted Answer

A reliable operational definition means that the way a concept is measured or manipulated is consistent across different occasions. However, this does not guarantee that the measurement or manipulation accurately reflects or captures the theoretical concept it is supposed to represent, which is a matter of validity. Thus, an operational definition can be reliable without being valid.

A Reliable Operational Definition Is