362 Abstracts of 16th Annual Meeting covariates, group membership as independent variable, and selected indices from the Control Oral Word Association Test, Wisconsin Card Sorting Test, Wechsler Memory Scale-Revised, and Trail Making Test as dependent variables. The results of this study suggest that number as well as location of facial fractures have important implications for cognitive functioning regardless of overall injury severity. Marshall, R. M., Prettyman, E. E., Harris, D. P., & Gray, R. P. A Comparison of Neuropsychological and Electrophysiological Test Results in Adolescents with Conduct Disorder. The purpose of this study is to investigate the correspondence between neuropsychological tests and brain electrical activity mapping in adolescents with Conduct Disorder (CD). The study seeks to identify underlying brain abnormalities and to identify more precisely left/right and anterior/posterior differences in this population. Although such information is thought to provide valuable data for diagnosis and treatment (Lahey et al., 1993; Shapiro & Hynd, 1993) few studies directly address these issues. Subjects for this investigation include 10 males, ages 12-18 at a residential treatment center in Texas. All subjects meet DSM-IV diagnostic criteria for CD and none has neurological abnormalities nor major psychoses. Subjects' neuropsychological test results were compared to their topographic brain maps. The latter includes EEG, auditory cognitive evoked potentials, visual evoked potentials, and P300, all processed by Fast Fourier Transformation. Analyses of neuropsychological test results suggest indicators of organicity most frequently involved tests associated with left hemi- sphere functioning. Analyses of electrophysiology data revealed QEEG and EP abnormalities manifest as anterior/posterior and interhemispheric differences. Both sets of data suggest that underlying brain abnormalities characterize this group of adolescents with Conduct Disorder. Implications for diagnosis and treatment will be discussed. Martelli, M. F., Zasler, N. D., & Braith, J. A. Predicting Outcome Following Traumatic Brain Injury. (TB1): Utility of a Composite Prog- nostic Indicator Checklist. A growing body of literature is emerging which describes the variables that impact on long term outcome following TBI. Although much is becoming known about these different factors individually, much less is known about their collective influence. The current investigation employed a composite approach to rating prognostic indicators for a group of 28 TBI patients in order to evaluate their collective effect on outcome. Subjects were recruited over a 1-month period from volunteer participants who had sustained diffuse traumatic cerebral injuries and were receiving ongoing or follow-up treatment services by the first author. Data collection was completed for 28 subjects (16 males; mean age = 36.4; mean education = 13.9; mean estimated last 2 year GPA = 2.6/4.0; mean time post-injury = 2.9 years). Data collection included review of medical records, live and phone interview with subjects and family members, administration of an objective personality assessment instru- ment (MMPI), and completion of mood, structured symptom, and quality of life rating instruments by patient and relative. Data analysis employing a linear regression analysis revealed that a combination of Length of PTA, Premorbid Neurologic Status, Premorbid Psychiatric Status, Estimated Premorbid IQ, Post-Traumatic Seizures, Marital/Relationship Status, Collateral Injuries and Accident Victimization Perception was highly accurate in discriminating post-traumatic vocational (R2 = .51, p < .01) and disability status (R2 = .69, p < .01). Further analysis indicated that a simple linear combination of these variables and a composite index with a clinically derived cutoff score assigning subjects to High and Low Vulnerability groups was found to reliably predict vocational (i.e., 1/8 vs. 14/20) employed or in school for High and Low vulnerability groups, respectively; ×2 (5, N = 28) = 17.37, p Downloaded from https://academic.oup.com/acn/article-abstract/12/4/362/4134 by guest on 04 June 2020