The Halstead-Reitan Neuropsychological Battery (HRNB) is a series of tests developed in the 1940s to identify and assess brain damage. It was created by Ward Halstead and Ralph Reitan to address limitations of intelligence tests for diagnosing brain injuries. The HRNB evaluates multiple cognitive abilities through tests of categories, tactile performance, trail making, finger tapping, rhythm, speech sounds, aphasia screening, and sensory-perceptual examination. While the HRNB is effective for diagnosing brain damage, recent research shows variables like age, education, IQ, gender, and alcohol use can also influence scores, requiring consideration during interpretation.