title: 1 year test-retest reliability of ImPACT in professional ice hockey players.
abstract: The Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) battery is widely used to assess neurocognitive outcomes following sports-related concussion. The purpose of this study was to examine the 1 year test-retest reliability of ImPACT in a multilingual sample of professional hockey players. A total of 305 professional hockey players were tested 1 year apart using ImPACT. Reliable change confidence intervals were calculated and test-retest reliability was measured using Pearson and Intraclass correlation coefficients. Results indicated that the 1-year test-retest reliabilities for the Visual Motor and Reaction Time Composites ranged from low to high (.52 to .81). In contrast, 1-year test-retest reliabilities for the Verbal and Visual Memory Composites were low (.22 to .58). The 1-year test-retest results provided mixed support for the use of Visual Motor and Reaction Time Composites in select samples; in contrast, the Verbal and Visual Memory Composites may not be sensitive to clinical change.
authors.affiliation: a Department of Psychology , University of Missouri , Kansas City , MO , USA.
authors.forename: Jared
authors.initials: J
authors.lastname: Bruce
authors.forename: Ruben
authors.initials: R
authors.lastname: Echemendia
authors.forename: Willem
authors.initials: W
authors.lastname: Meeuwisse
authors.forename: Paul
authors.initials: P
authors.lastname: Comper
authors.forename: Amber
authors.initials: A
authors.lastname: Sisco
mesh_terms: D000328:Adult; D001924:Brain Concussion / Q000175:diagnosis*; D003071:Cognition; D016001:Confidence Intervals; D006688:Hockey; D006801:Humans; D007802:Language; D008297:Male; D008568:Memory; D009483:Neuropsychological Tests / Q000592:standards*; D038223:Post-Concussion Syndrome / Q000175:diagnosis; D011930:Reaction Time; D015203:Reproducibility of Results