Why is a clinical interview necessary as an initial component to the assessment process

I need help doing the discussion question for Screening and assessment I have been in the hospital PS410 unit 2

Choose one (1) of the clinical contexts outlined in your reading for this unit and describe a fictional client and his or her specific problems that would be best to address in that context. Review why the context is appropriate for your client and list one or two specific assessments that could potentially be administered. Be sure to include a review of ethical concerns related to your client and the clinical context.

B: The Interview

Why is a clinical interview necessary as an initial component to the assessment process? How does the interview contribute to the assessment process? Include specifics related to methods, strengths, limitations, and other characteristics outlined in your reading for this unit. Specific ethical concerns related to the clinical interview should be noted as well.