Which of the following sources is NOT a primary source for assessment in social work?

In social work, primary sources for assessment are those that provide firsthand, direct information about the client and their circumstances. The correct answer identifies "Existing Records" as not being a primary source. These records, such as previous case files, medical histories, or reports from other professionals, are categorized as secondary sources because they offer information that has been collected, interpreted, and documented by someone else.

On the other hand, a worker's observation, primary interviews, and a client's self-report all represent direct interactions or firsthand information that are crucial for understanding the client's situation. These sources provide the social worker with immediate insights and perspectives, making them essential for effective assessment and intervention planning.

Recognizing the difference between primary and secondary sources is vital in social work practice, as it impacts how assessments are conducted and the reliability of the information used for decision-making.