TY - JOUR
T1 - Test–retest, retest, and retest
T2 - Growth curve models of repeat testing with Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT)
AU - Maerlender, Arthur C.
AU - Masterson, Caitlin J.
AU - James, Tiffany D.
AU - Beckwith, Jonathan
AU - Brolinson, Per Gunner
AU - Crisco, Joe
AU - Duma, Stefan
AU - Flashman, Laura A.
AU - Greenwald, Rick
AU - Rowson, Steven
AU - Wilcox, Beth
AU - McAllister, Tom W.
N1 - Funding Information:
This work was supported by National Institute of Health National Center for Medical Rehabilitation Research [grant number BRP R01HD048638]; National Institute of Child Health and Development; and National Institute of Health/National Institute of Neurological Disease and Stroke [grant number RO1NS055020].
Publisher Copyright:
© 2016 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2016/9/13
Y1 - 2016/9/13
N2 - Computerized neuropsychological testing has become an important tool in the identification and management of sports-related concussions; however, the psychometric effect of repeat testing has not been studied extensively beyond test–retest statistics. The current study analyzed data from Division I collegiate athletes who completed Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) baseline assessments at four sequential time points that varied over the course of their athletic careers. Administrations were part of a larger National Institutes of Health (NIH) study. Growth curve modeling showed that the two memory composite scores increased significantly with successive administrations: Change in Verbal Memory was best represented with a quadratic model, while a linear model best fit Visual Memory. Visual Motor Speed and Reaction Time composites showed no significant linear or quadratic growth. The results demonstrate the effect of repeated test administrations for memory composite scores, while speed composites were not significantly impacted by repeat testing. Acceptable test–retest reliability was demonstrated for all four composites as well.
AB - Computerized neuropsychological testing has become an important tool in the identification and management of sports-related concussions; however, the psychometric effect of repeat testing has not been studied extensively beyond test–retest statistics. The current study analyzed data from Division I collegiate athletes who completed Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) baseline assessments at four sequential time points that varied over the course of their athletic careers. Administrations were part of a larger National Institutes of Health (NIH) study. Growth curve modeling showed that the two memory composite scores increased significantly with successive administrations: Change in Verbal Memory was best represented with a quadratic model, while a linear model best fit Visual Memory. Visual Motor Speed and Reaction Time composites showed no significant linear or quadratic growth. The results demonstrate the effect of repeated test administrations for memory composite scores, while speed composites were not significantly impacted by repeat testing. Acceptable test–retest reliability was demonstrated for all four composites as well.
KW - Concussion
KW - Growth curve modeling
KW - Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT)
KW - Neuropsychology
KW - Test–retest reliability
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U2 - 10.1080/13803395.2016.1168781
DO - 10.1080/13803395.2016.1168781
M3 - Article
C2 - 27266563
AN - SCOPUS:84973597794
SN - 1380-3395
VL - 38
SP - 869
EP - 874
JO - Journal of Clinical and Experimental Neuropsychology
JF - Journal of Clinical and Experimental Neuropsychology
IS - 8
ER -