Functioning Assessments Making differentiation regarding Functioning Assessments we are able to complete is important as psychological assessments may be conducted for many different purposes. As such, a wide variety of assessments measures may be needed and can be provided, alone or in combination. In general, each category of assessment will consist of a detailed clinical interview and a standard test battery that is focused on the referral questions and, therefore, referral concerns. Given the aforementioned, all psychological assessments completed within this context will be structured to the individual needs of the client. The structure of the assessment will determine the final cost of the assessment, which will also be outlined in the retainer agreement that will be provided to you after the initial consultation. The following is a list and brief description of the most common specialized clinical assessment services offered by ARCH Psychological Services. For more information about other psychological assessments we are able to provide, please contact our administrative staff.