Abstract
This article presents three considerations in the practical use of psychological testing: the relationship with the client, the variation of test scores caused by the environment, and the meaning of testing itself, with respect to which this article discusses the interests of the client. We should pay attention to the possibility that objective test scores do not always conduce to the interests of the client; rather, the usefulness of testing depends on the state of the client. The tester should carefully consider the state of the client to improve the usefulness of testing in clinical practice.