but the important thing is whatever is the chosen method it must fits and be based in what are you trying to evaluate. For example, travel cost is not applicable in every situation.... So, just be careful to choose the right thing for your objective.

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but the important thing is whatever is the chosen method it must fits and be based in what are you trying to evaluate. For example, travel cost is not applicable in every situation....

So, just be careful to choose the right thing for your objective.