effectiveness
[U] Uncountable
pl: nullpast: nullpp: nulling: nullcomp: nullsup: null
This term focuses on the actual outcome and the realization of a goal. It is a measure of success based on whether the intended target was hit, regardless of the cost or the effort expended to get there. It is frequently contrasted with efficiency. While efficiency is about minimizing waste and optimizing resources during a process, effectiveness is purely about the result. A process can be highly efficient but completely ineffective if it produces the wrong result perfectly.
Used to describe the general quality or capacity of being effective, such as measuring the effectiveness of a policy.