What Does Letter Cancellation Test Measure?
The Letter Cancellation Test is a neuropsychological examination that measures an individual’s sustained attention, visual scanning ability, and cognitive flexibility. In this test, the subjects are asked to scan a sheet of paper with various letters and cross out a specific target letter while ignoring all other letters. It is a widely used test in psychology and medicine to assess cognitive function and diagnose various neurological disorders, such as attention deficit hyperactivity disorder (ADHD), dementia, and traumatic brain injury.