Therapy and assessment are both professional activities that psychologists do. The biggest differences are in the purpose of the service and length of time.Assessment is an information-gathering appointment. Psychologists use standardized tests, interviews, and questionnaires to gather information - across multiple sources - then see how that information aligns with a psychiatric diagnosis. The results are shared in a written report and often include recommendations. These recommendations can be forwarded to guide the course of therapy, provide feedback and guidance, and to provide documentation needed for educational, testing, or occupational accommodations.Assessment occurs over a small, but intense time period (usually under six hours). Though it might seem like 'all business,' good assessment breaks up this time and works hard to keep the client engaged and motivated, so we get valid results that can be used to help our clients.In most cases, therapy is a longer process designed to help clients better understand their struggles and work through them to improve their lives. Therapy often occurs on a regular basis and can go on for several months. Assessment helps therapists with their case conceptualization and makes recommendations, so assessment + therapy helps your provider best identify a client's needs and tailor treatment to their strengths and areas of growth.