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A Neuroscientific Approach to the Examination of Concussions in Student-Athletes
Published on: December 8, 2014
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Reliability of Computerized Neurocognitive Tests for Concussion Assessment: A Meta-Analysis
James L Farnsworth1, Lucas Dargo2, Brian G Ragan3
1School of Education and Exercise Science, Buena Vista University, Storm Lake, IA.
Journal of Athletic Training
|August 4, 2017
Summary
Computerized neurocognitive tests (CNTs) show variable reliability. The Axon Sports CogState Test demonstrated higher reliability than Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT), suggesting it may be a more dependable option for concussion assessment.
Area of Science:
- Neuroscience
- Sports Medicine
- Psychometrics
Background:
- Computerized neurocognitive tests (CNTs) are widely used for concussion assessment but face criticism regarding their reliability and sensitivity.
- Previous systematic reviews have focused on single CNTs, necessitating a broader analysis of multiple tests.
Purpose of the Study:
- To conduct a meta-analysis of reliability data for various CNTs.
- To identify moderating factors influencing the reliability of CNTs.
Main Methods:
- Systematic literature search of electronic databases (MEDLINE, PubMed, Google Scholar, SPORTDiscus) for studies on CNT reliability.
- Inclusion criteria: test-retest design, at least one CNT, sufficient statistical data, English publication.
- Meta-analysis of intraclass correlation coefficients from 18 studies (2674 participants) and moderator analyses.
Main Results:
- The Axon Sports CogState Test exhibited the highest proportion of acceptable outcomes (75%), while Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) had the lowest (25%).
- Moderator analyses revealed that the choice of intraclass correlation coefficient model significantly impacted reliability estimates, explaining 17% of the variance.
Conclusions:
- The Axon Sports CogState Test may offer a more reliable option for concussion assessment due to its higher reliability and shorter test duration.
- Further research is required to compare the diagnostic accuracy of different CNTs.
