True or False. A solid starting point when determining a diagnosis is to start by determining which classes of disorders the client's signs and symptoms most align with.

• A. False
• B. Not specified
• C. True
• D. It depends

Answer: (C)

Grouping signs and symptoms into broad disorder classes is a practical first step in diagnostic reasoning. By identifying which major categories best fit the client’s presentation—such as mood, anxiety, psychotic, or neurodevelopmental disorders—you create a structured framework for your differential diagnosis. This helps you quickly narrow possibilities, decide which assessment tools to use, and determine what questions to pursue next to differentiate between conditions with overlapping features. It also aligns with how diagnostic systems organize disorders by characteristic patterns, onset, and impairment, which supports a systematic approach rather than jumping to a single label too soon. Of course, you still examine the specifics, consider medical or cultural factors, and remain open to comorbidity as you refine the diagnosis, but starting with class alignment is a solid, widely taught starting point.