Which factor is NOT part of basic intake information?

The correct choice highlights that the client's personal opinions are not considered part of the basic intake information typically collected during the initial assessment process. Basic intake information usually focuses on obtaining factual data that is essential for understanding the client's situation and developing an appropriate treatment plan.

Background history provides insight into the client's life circumstances, including family, education, and employment, which can affect their substance use and overall health. Substance use history details the nature, frequency, and duration of substance use, which is crucial for determining the severity of the problem and guiding interventions. Mental health treatment history offers information on any previous mental health issues and treatments, which is important for comprehensive care, as mental health often intersects with substance use disorders.

While a client's personal opinions may offer valuable context and support the therapeutic alliance, they are generally not categorized as basic intake information since intake focuses more on objective data that informs the treatment approach.