The Reitan Society recognizes that adhering to the scientific method in conducting clinical neuropsychological evaluations is integral to neurodiagnostic accuracy. The role of science in clinical studies is discussed with specific reference to the scientific features of the Halstead-Reitan Test Battery (HRB). The diagnostic precision of the HRB across a wide range of neuropathological states is presented as a product of rigorous scientific interplay between empirical observation and the development of a conceptual model over more than five decades.
Data from the Halstead-Reitan Neuropsychological Test Battery were interpreted for 33 adults who had been subjected to nonimpact acceleration forces in motor vehicle accidents. Comparisons with normative data provided by Reitan and Wolfson (1993) identified impaired performance on the Localization component of the Tactual Performance Test and the Category Test and atypical right-left differences on the Tactual Performance Test and Grip Strength. In contrast, comparisons with a normative data set developed by Heaton, Grant, Matthews, and PAR Staff (1991) through T-score conversions produced results that suggested normal cognitive skills. The Neuropsychological Deficit Scale score was one of the clearest indicators of neuropsychological impairment, falling generally well within the mildly impaired range.
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