Students with significant learning and behavior difficulties are often referred to a professional (e.g., a school or a private psychologist) to determine if they have an educational disability that qualifies them for additional services. The professional administers a battery of psychoeducational tests and makes a diagnosis with prescriptive recommendations. But how reliable and valid are these practices and diagnoses, and just how helpful are they? Gain knowledge about these practices so you are informed when a child is evaluated.