title: Reliability and validity of questionnaire for neurobehavioral disability following traumatic brain injury.
abstract: The neurobehavioral disability recognized in traumatic brain injury (TBI) is a severe sequela, but there is no appropriate classification due to its various manifestations. In the present study a questionnaire for a simple investigation of this disability was prepared, and its reliability and validity verified. The survey was conducted on 72 patients with TBI by the caregiver of each patient. As a result, good reliability was indicated by the split-half method (coefficient of reliability: 0.95, obtained using Spearman-Brown correction formula). The total score of the questionnaire had a significant correlation with the total score of the simultaneously conducted Japanese version of Neuropsychiatry Inventory at the 0.01 level (Spearman's rank correlation, 0.47). It also had a significant correlation with the total score of the simultaneously conducted Japanese version of the Dysexecutive Questionnaire at the 0.05 level (Spearman's rank correlation, 0.36). Six factors constituting this neurobehavioral disability were extracted from a factor analysis of the questionnaire survey. These factors are angry outburst, avolition, deficits of sympathy, depressed mood, discourse deficits, and degradation of appearance. Each factor indicated good internal consistency (Cronbach alpha, 0.86-0.94). The present results indicate that this questionnaire has good reliability and validity, therefore it can be a significant indicator in TBI neurobehavioral disability study.
authors: Department of Psychiatry, Tsukuba Memorial Hospital, Tsukuba, Ibaraki, Japan. yamasato@mail1.accsnet.ne.jp
authors: Michihiko
authors: M
authors: Yamasato
authors: Shinji
authors: S
authors: Satoh
authors: Chiaki
authors: C
authors: Ikejima
authors: Izumi
authors: I
authors: Kotani
authors: Akira
authors: A
authors: Senzaki
authors: Takashi
authors: T
authors: Asada
mesh_terms: D000293:Adolescent; D000328:Adult; D001930:Brain Injuries / Q000523:psychology*; D002648:Child; D003627:Data Interpretation, Statistical; D004185:Disability Evaluation; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010551:Personality / Q000502:physiology; D011597:Psychomotor Performance / Q000502:physiology; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires