Journal of Rehabilitation Research & Development (JRRD)

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Volume 49 Number 6, 2012
   Pages 879 — 888

Abstract — Psychometric study of the Neurobehavioral Symptom Inventory

Paul R. King, PhD;1–2* Kerry T. Donnelly, PhD;3 James P. Donnelly, PhD;2 Mina Dunnam, PhD;4 Gary Warner, PhD;5 C. J. Kittleson, PsyD;6 Charles B. Bradshaw, PhD;7 Michelle Alt, MA;3 Scott T. Meier, PhD2
1Center for Integrated Healthcare, Department of Veterans Affairs (VA) Western New York Healthcare System–Buffalo, Buffalo, NY; 2Department of Counseling, School, and Educational Psychology, The University at Buffalo, State University of New York, Buffalo, NY; 3Behavioral Health Careline, VA Western New York Healthcare System–Buffalo, Buffalo, NY; 4Behavioral Health Careline, Stratton VA Medical Center, Albany, NY; 5Behavioral Health Careline, Canandaigua VA Medical Center, Canandaigua, NY; 6Behavioral Health Careline, Bath VA Medical Center, Bath, NY; 7Behavioral Health Careline, Syracuse VA Medical Center, Syracuse, NY

Abstract — The Department of Veterans Affairs (VA) uses the Neurobehavioral Symptom Inventory (NSI) to measure postconcussive symptoms in its comprehensive traumatic brain injury (TBI) evaluation. This study examined the NSI’s item properties, internal consistency, and external validity. Data were obtained from a federally funded study of the experiences of combat veterans. Participants included 500 Operations Iraqi and Enduring Freedom veterans, 219 of whom sustained at least one TBI. Data were collected at five VA medical centers and one VA outpatient clinic across upstate New York. Measures included neuropsychological interview, NSI, Beck Anxiety Inventory, Beck Depression Inventory-II, and Posttraumatic Stress Disorder Checklist-Military Version. The NSI demonstrated high internal consistency (total alpha = 0.95; subscale alpha = 0.88 to 0.92). Subscale totals based on Caplan et al.’s factor analysis correlated highly with the NSI total score (r = 0.88 to 0.93). NSI scores differentiated veterans with TBI history from those without but were strongly influenced by variance associated with probable posttraumatic stress disorder, depression, and generalized anxiety. Results suggest that the NSI is a reliable and valid measure of postconcussive symptoms. Scale validity is evident in the differentiation of TBI and non-TBI classifications. The scale domain is not limited to TBI, however, and extends to detection of probable effects of additional affective disorders prevalent in the veteran population.

Key words: brain concussion, brain injuries, comprehensive TBI evaluation, Neurobehavioral Symptom Inventory, neuro-psychology, postconcussion symptoms, posttraumatic, stress disorders, traumatic brain injury, veterans.


View HTML  ¦  View PDF  ¦  Contents Vol. 49, No. 6
This article and any supplementary material should be cited as follows:
King PR, Donnelly KT, Donnelly JP, Dunnam M, Warner G, Kittleson CJ, Bradshaw CB, Alt M, Meier ST. Psychometric study of the Neurobehavioral Symptom Inventory. J Rehabil Res Dev. 2012;49(6):879–88.
http://dx.doi.org/10.1682/JRRD.2011.03.0051
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Last Reviewed or Updated  Thursday, August 16, 2012 11:26 AM

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