1. 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. (September 2021) Authors: Agtarap, Stephanie; Kramer, Mark D.; Campbell-Sills, Laura; Yuh, Esther; Mukherjee, Pratik; Manley, Geoffrey T.; McCrea, Michael A.; Dikmen, Sureyya; Giacino, Joseph T.; Stein, Murray B.; Nelson, Lindsay D. Other Names: Adeoye Opeolu non-byline-author.; Badjatia Neeraj non-byline-author.; Boase Kim non-byline-author.; Bodien Yelena non-byline-author.; Bullock M. Ross non-byline-author.; Chesnut Randall non-byline-author.; Corrigan John D. non-byline-author.; Crawford Karen non-byline-author.; Diaz-Arrastia Ramon... Journal: Assessment Issue: Volume 28:Number 6(2021) Page Start: 1656 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗