Does the NART hold after head injury? A case report.

The NART is frequently used to estimate the premorbid intellectual ability of subjects undergoing neuropsychological assessment for a variety of reasons. Although the NART has been shown to hold in dementia, depression and head injury, reports to date have inferred premorbid IQs with no actual data on premorbid functioning. This is a case report of a man who sustained a severe head injury on whom an intelligence test had been administered in childhood. The NART produced a very accurate estimate of his pre-injury IQ.