Ecological validity of neuropsychological and other predictors following head injury

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Abstract
This study evaluated the predictive value of neuropsychological variables as compared to three other types of variables (demographic, medical, and emotional) in predicting three outcomes (occupational function:OccF; activity impairment:AI; and pension impairment percent) in 483 head-injured ambulatory workers. OccF was equally well-predicted by neuropsychological or demographic variable-families. A1 was best predicted by neuropsychological or emotional variable-families, and pension impairment percent was predicted equally well by all but emotional variable-families. Cross-validation showed good stability of the level of prediction. Discriminant analysis correctly classified 72% of subjects as Un/Employed. Neuropsychological test performance is related to important behavior in outpatient brain-injury survivors.