The underlying structure of the Postconcussion Syndrome Questionnaire (PCS) was evaluated in a large sample of 1,116 medical and psychiatric patients. Balancing internal consistency, confirmatory factor analysis, and parsimony results in endorsement of the four-factor solution for the PCS for this sample. (SLD)

A new procedure, the Letter Memory Test, was developed for evaluating adequacy of effort given during neuropsychological testing. It is a computer-administered forced-choice recognition task. In three studies involving nearly 400 patients and community volunteers, the test discriminated among poorly and highly motivated groups, and its internal…

The reliability and validity of the State-Trait Anxiety Inventory for Children (STAIC) was studied with 675 adolescents aged 12 to 18 recruited from clinical and community sources. The STAIC is a self-report measure that has been widely used to assess state and trait anxiety of children. It has been suggested that the child version may be more…

One month test-retest reliability of the Revised Psychopathy Checklist (PCL-R) was examined in 88 methadone-maintained males, along with effects of increased information about patients on PCL-R scores and diagnostic derivations. Test-retest reliabilities are quite good. Other findings also confirm potential utility of the PCL-R for research. (SLD)

When 197 disadvantaged older medical patients completed the Beck Anxiety Inventory, the instrument demonstrated high internal consistency and no significant differences by sex or race, suggesting that it is appropriate for use with diverse populations. Total instrument scores correlated negatively with age. (SLD)

A developed computer-administered form of the Hamilton Anxiety Scale and the clinician form of the instrument were administered to 214 psychiatric outpatients and 78 community adults. Results support the reliability and validity of the computer-administered version as an alternative to the clinician-administered version. (SLD)