Invariance of the Bifactor Structure of Mild Traumatic Brain Injury (mTBI) Symptoms on the Rivermead Postconcussion Symptoms Questionnaire Across Time, Demographic Characteristics, and Clinical Groups: A TRACK-TBI Study
Abstract
This study aimed to elucidate the structure of the Rivermead Postconcussion Symptoms Questionnaire (RPQ) and evaluate its longitudinal and group variance. Factor structures were developed and compared in 1,011 patients with mild traumatic brain injury (mTBI; i.e., Glasgow Coma Scale score 13-15) from the Transforming Research and Clinical Knowledge in TBI study, using RPQ data collected at 2 weeks, and 3, 6, and 12 months postinjury. A bifactor model specifying a general factor and emotional, cognitive, and visual symptom factors best represented the latent structure of the RPQ. The model evinced strict measurement invariance over time and across sex, age, race, psychiatric history, and mTBI severity groups, indicating that differences in symptom endorsement were completely accounted for by these latent dimensions. While highly unidimensional, the RPQ has multidimensional features observable through a bifactor model, which may help differentiate symptom expression patterns in the future.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 24, 2020
- Source ID
- 10.1177/1073191120913941
Entities
People
- Adam R. Ferguson
- Alastair Martin
- Alex B Valadka
- Angelle Sander
- Ann-christine Duhaime
- Arthur W. Toga
- Ava M. Puccio
- Brandon Foreman
- Chris Lindsell
- Christopher Madden
- Claudia Robertson
- Dana Goldman
- Daniel Perl
- David O. Okonkwo
- David Schnyer
- Esther Yuh
- Etienne Gaudette
- Eva Palacios
- Florence Noel
- Frederick K. Korley
- Gabriella Satris
- Geoffrey T. Manley
- Gillian Hotz
- Harvey Levin
- J. Claude Hemphill
- Joan Machamer
- Joel Kramer
- John D. Corrigan
- John K. Yue
- Jonathan Rosand
- Joseph T Giacino
- Karen Crawford
- Kevin G. Wang
- Kim Boase
- Laura B. Ngwenya
- Laura Campbell-Sills
- Lindsay D Nelson
- Luis Gonzalez
- M. Ross Bullock
- Mark D. Kramer
- Mark Sherer
- Mary Vassar
- Michael A. Mccrea
- Miri Rabinowitz
- Murray B. Stein
- Nancy R Temkin
- Natalie Kreitzer
- Neeraj Badjatia
- Opeolu Adeoye
- Paul Vespa
- Pratik Mukherjee
- Ramon Diaz-Arrastia
- Randall Chesnut
- Randall Merchant
- Rao Gullapalli
- Raquel C Gardner
- Richard Ellenbogen
- Ross Zafonte
- Sabrina R. Taylor
- Seth Seabury
- Shankar Gopinath
- Sonia Jain
- Stephanie D Agtarap
- Sureyya Dikmen
- Thomas W. McAllister
- V. Ramana Feeser
- Yelena Bodien
Organizations
- Massachusetts General Hospital
- Medical College of Wisconsin
- National Institute of Neurological Disorders and Stroke
- United States Department of Defense
- University of California
- University of Minnesota
- University of Washington