Classified independently 150 neuropsychiatric referrals into Definite (DBD), Suspected (SDB) or NO Brain Damage (NDB) groups on the basis of non‐neuropsychological evaluative data. Each S was examined with a brief, 2‐hour neuropsychologic screening battery, and the test data were analyzed by a stepwise linear discriminant function program. Statistical classifications were compared with criteria for NBD vs. SBD + DBD and for SBD vs. DBD groupings. Hit rates ranged from 95% for the former to 81.7% for the latter, with low false positives and negatives. Hit and miss rates were not as strong in a validation step, but exceeded chance levels.
The U.S. Air Force prisoners of war (POWs) experienced a profound degree of stress during the Viet Nam War. The psychiatric status of this population has been monitored by an ongoing voluntary follow-up program from the time of repatriation through the following five years. Data indicate a significant degree of psychiatric readjustment problems, which were greatest among POWs captured before 1969. These findings support the association of an unusually stressful environment with an increased incidence of psychiatric illness.
Based upon non‐neuropsychological evaluative data, 150 neuropsychiatric referrals were classified independently into Definite (DBD), Suspected (SBD), or No Brain Damage (NBD) groups. Each S was examined with a brief, 2‐hour neuropsychologic battery and the test data clinically rated by two neuropsychologists, blind to group membership. Clinical classifications were compared with criteria for NBD vs. SBD + DBD, NDB vs. SBD, and SBD vs. DBD groupings. Hit rates ranged from 83.3% for the former to 64.3% for the latter. These results compared favorably with hit rates derived from statistical classification trials. Clinicians also classified SBD and DBD cases into one of eight different diagnostic categories. The overall hit rate was 61.3%.
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