The clinical interview is an important assessment tool for counselors to gather reliable information from clients during the initial intake phase. Validity refers to how well a test measures what it is intended to measure, and a clinical interview is a valid way for counselors to obtain a wide range of information about a client's past and present circumstances. The clinical interview is structured compared to an ordinary conversation, with defined roles and direction from the interviewer to communicate the assessment process, understand client expectations, and document problem behaviors.