Psychological assessment, also called psychological testing,  is the process of gathering information about your psychological functioning to clarify if you have a mental health disorder. Common reasons to have psychological testing include:

• Diagnostic clarity (determine if you have a particular disorder, such as ADHD)

• Evaluate cognitive abilities 

• Inform treatment plan

• Identify strengths and weaknesses

• Satisfy third-party's demand (e.g., fitness for duty, accommodation)

Psychological testing usually includes meeting with a psychologist for several hours, completing various questionnaires, and providing your other medical/mental health records for review.