Comparison of Empirically Derived and Predicted Standard Scores for Form II of the Luria-Nebraska Neuropsychological Battery

Abstract

Until Wong, Schefft, and Moses published norms for Form II of the Luria-Nebraska Neuropsychological Battery in 1990, Golden, Purisch, and Hammeke's 1985 regression equations were the only procedure available to interpret scores on Form II of the battery. In the present study comparison of the empirically based norms with standard scores obtained via the regression equations showed that (1) the scale means and standard deviations used in the development of the regression equations indicated substantially more impairment than those obtained by Wong, et al. and (2) the standard (T) scores predicted by the regression equations consistently underestimated impairment relative to the T scores obtained directly from Wong, et al.'s empirically derived norms. Reasons for, and implications of, these findings were discussed.