In TAP 21, what does the domain "Assessment" involve?

The domain of "Assessment" in TAP 21 primarily focuses on the systematic collection of client information that is crucial for informing both diagnosis and treatment planning. This process involves gathering data on various aspects of a client's life, including their substance use history, mental health status, psychosocial factors, and other relevant details that contribute to understanding the individual's unique situation.

This collected information serves as the foundation for developing an accurate diagnosis and tailoring an appropriate treatment plan that addresses the specific needs and challenges faced by the client. The assessment is an ongoing process; initial evaluations may lead to more detailed inquiries or further assessments as treatment progresses.

The other options presented involve aspects of the counseling process that occur after or alongside the assessment. Establishing treatment goals is part of the planning phase that follows assessment, providing practical support pertains to the execution of the treatment plan, and evaluating the success of the treatment program refers to monitoring progress and outcomes, which also comes after the assessment phase. Hence, "Assessment" is distinctly centered on the collection and analysis of information to facilitate informed decision-making in treatment.