Journal of Rehabilitation Research & Development (JRRD)

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Volume 53 Number 3, 2016
   Pages 379 — 390

Abstract — Utility of the Validity-10 scale across the recovery trajectory following traumatic brain injury

Sara M. Lippa, PhD;1–2* Rael T. Lange, PhD;1–3 Jason M. Bailie, PhD;1,4 Jan E. Kennedy, PhD;1,5 Tracey A. Brickell, D.Psych;1–2,6 Louis M. French, PsyD1–2,6

1Defense and Veterans Brain Injury Center and 2National Intrepid Center of Excellence, Walter Reed National Military Medical Center, Bethesda, MD; 3Department of Psychiatry, University of British Columbia, Vancouver, Canada; 4Naval Medical Center, San Diego, San Diego, CA; 5San Antonio Military Medical Center, San Antonio, TX; 6Center for Neuroscience and Regenerative Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD

Abstract — The Validity-10 scale was recently developed to screen for symptom exaggeration in patients following traumatic brain injury (TBI). However, it has only been validated on patients with TBI largely in the chronic phase of recovery. The influence of time since injury on the Validity-10 scale was investigated in 2,661 male servicemembers with TBI presenting to six U.S. Defense and Veterans Brain Injury Centers. Participants completed the Neurobehavioral Symptom Inventory (NSI). The Validity-10 scale and NSI total score were both weakly statistically significantly (1) positively correlated with time since injury, (2) negatively correlated with bodily injury severity, and (3) higher in participants undergoing medical board evaluations than in participants who returned to duty or were still hospitalized. Participants were statistically more likely to screen positive for possible symptom exaggeration on the Validity-10 scale as time since injury increased. However, the Validity-10 scale was only weakly related to time since injury, TBI severity, bodily injury severity, disposition, age, and return to duty status. That false positives are not increased in the acute phase of recovery and that the Validity-10 scale is not strongly related to clinical factors support the use of the Validity-10 scale in the acute recovery phase and across the TBI recovery trajectory.

Key words: military, Neurobehavioral Symptom Inventory, postconcussion symptoms, symptom exaggeration, symptom report, symptom validity, TBI, time since injury, traumatic brain injury, Validity-10 scale.


View HTML ¦ View PDF ¦ Contents Vol. 53, No.3

This article and any supplementary material should be cited as follows:
Lippa SM, Lange RT, Bailie JM, Kennedy JE, Brickell TA, French LM. Utility of the Validity-10 scale across the recovery trajectory following traumatic brain injury. J Rehabil Res Dev. 2016;53(3):379–90.
http://dx.doi.org/10.1682/JRRD.2015.01.0009
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