The Speed and Capacity of Language Processing Test (SCOLP) measures the slowing in cognitive processes that can be experienced by individuals with brain damage. SCOLP consists of two separate measures: The Speed of Comprehension Test allows the rate of information processing to be measured, and The Spot-the-Word Test provides a framework for interpreting the results of the first test. SCOLP enables differentiation between a subject who has always been slow and a subject whose performance has been impaired as a result of brain damage or some other stressor. It is sensitive to the effects of closed head injury, normal aging, Alzheimer’s disease, schizophrenia, and to a wide range of drugs and stressors, including alcohol. The SCOLP is brief and easy to administer and will be particularly useful to neurologists, clinical psychologists, occupational therapists, and speech therapists.