title: Test-Retest Reliability of Computerized Neurocognitive Testing in Youth Ice Hockey Players.
abstract: Computerized neurocognitive tests are frequently used to assess pediatric sport-related concussions; however, only 1 study has focused on the test-retest reliability of the Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) in high school athletes and age influences have largely been ignored. Therefore, the purpose was to investigate the test-retest reliability of ImPACT and underlying age influences in a pediatric population. Two hundred (169 men and 31 women) youth ice hockey players completed ImPACT before/after a 6-month season. Reliability was assessed using Pearson correlation coefficients, intraclass correlation coefficients (ICCs), and regression-based methods (RBz). ICCs for the sample ranged from .48 to .75 (single)/.65 to .86 (average). In general, the older athletes (15-18: Single/Average ICCs = .35-.75/.52-.86) demonstrated greater reliability across composites than the younger athletes (11-14: Single/Average ICCs = .54-.63/.70-.77). Although there was variation in athletes' performance across two test administrations, RBz revealed that only a small percentage of athletes performed beyond 80%, 90%, and 95% confidence intervals. Statistical metrics demonstrated reliability coefficients for ImPACT composites in a pediatric sample similar to previous studies, and also revealed important age-related influences.
authors.affiliation: Department of Orthopaedic Surgery, University of Pittsburgh Medical Center Sports Medicine Concussion Program, Pittsburgh, PA, USA womblemn@upmc.edu meliss0625@hotmail.com.
authors.forename: Melissa N
authors.initials: MN
authors.lastname: Womble
authors.affiliation: Department of Orthopaedic Surgery, University of Pittsburgh Medical Center Sports Medicine Concussion Program, Pittsburgh, PA, USA.
authors.forename: Erin
authors.initials: E
authors.lastname: Reynolds
authors.affiliation: Department of Psychology, Saint Joseph's University, Pittsburgh, PA, USA.
authors.forename: Philip
authors.initials: P
authors.lastname: Schatz
authors.affiliation: Department of Orthopaedic Surgery, University of Pittsburgh Medical Center Sports Medicine Concussion Program, Pittsburgh, PA, USA Department of Orthopedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA.
authors.forename: Kishan M
authors.initials: KM
authors.lastname: Shah
authors.affiliation: Department of Orthopaedic Surgery, University of Pittsburgh Medical Center Sports Medicine Concussion Program, Pittsburgh, PA, USA.
authors.forename: Anthony P
authors.initials: AP
authors.lastname: Kontos
mesh_terms: D000293:Adolescent; D000367:Age Factors; D001265:Athletic Injuries / Q000150:complications*; D016009:Chi-Square Distribution; D002648:Child; D003072:Cognition Disorders / Q000175:diagnosis* / Q000209:etiology*; D015331:Cohort Studies; D003936:Diagnosis, Computer-Assisted; D005260:Female; D006688:Hockey / Q000293:injuries*; D006801:Humans; D008297:Male; D008570:Memory, Short-Term / Q000502:physiology; D009483:Neuropsychological Tests; D011930:Reaction Time / Q000502:physiology; D015203:Reproducibility of Results; D012189:Retrospective Studies; D015599:Trauma Severity Indices; D014706:Verbal Learning / Q000502:physiology
keywords: Head injury; Practice effects/reliable change; Statistical methods; Traumatic brain injury