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The structure of the Rivermead Post-Concussion Symptoms Questionnaire in Australian adults with traumatic brain injury

Citation

Thomas, M and Skilbeck, C and Cannan, P and Slatyer, M, The structure of the Rivermead Post-Concussion Symptoms Questionnaire in Australian adults with traumatic brain injury, Brain Impairment, 19, (2) pp. 166-182. ISSN 1443-9646 (2018) [Refereed Article]

Copyright Statement

Copyright Australasian Society for the Study of Brain Impairment 2017

DOI: doi:10.1017/BrImp.2017.26

Abstract

Background and aims: Many sustaining traumatic brain injury (TBI) suffer ongoing post-concussion symptoms (PCS). The Rivermead Post-Concussion Symptoms Questionnaire (RPQ) is widely used, although there is disagreement about its structure. This study compared the fit of published RPQ structures with a four-factor structure derived from a large adult sample with TBI in Tasmania.

Method: 661 adults with TBI completed the RPQ at approximately one month post injury. Exploratory factor analysis (EFA), using the first half of the sample (n = 330), suggested a four-factor solution. This was compared with models reported in the literature with the second half of the sample (n = 331), using structural equation modelling. Trajectory of recovery across these factors was examined within subsamples at 1, 3, 6 and 12 months following TBI.

Results: Inter-correlations between items were strongest for somatic, cognitive and emotional functioning items and the EFA identified a four-factor model. Fit was examined utilising bootstrapping for model comparison. The data at 1 month following TBI best fitted the four-factor model (CFI = .95, RMSEA = .060 (.049.071) and factors had adequate internal consistency (r = .61.89). This model appeared a good fit and clinically useful across time points to 12 months post injury.

Conclusions: Data best fitted a four-factor model, identified using a rigorous statistical approach. Clinicians and clinical researchers may use this preferred model to provide more specific measurement of the severity of PCS. Future research could attempt replication within international samples.

Item Details

Item Type:Refereed Article
Keywords:Rivermead Post-Concussion Symptoms Questionnaire (RPQ), construct validity, factor structure, concussion, mild traumatic brain injury
Research Division:Psychology and Cognitive Sciences
Research Group:Psychology
Research Field:Biological Psychology (Neuropsychology, Psychopharmacology, Physiological Psychology)
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in Psychology and Cognitive Sciences
UTAS Author:Skilbeck, C (Associate Professor Clive Skilbeck)
UTAS Author:Cannan, P (Miss Philippa Cannan)
ID Code:130897
Year Published:2018
Web of Science® Times Cited:1
Deposited By:Psychology
Deposited On:2019-02-19
Last Modified:2019-04-15
Downloads:0

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