A Reliability and Comparative Analysis of the New Randomized King-Devick Test

Objective: The King-Devick (K-D) test is a rapid visual screening tool that can assess underlying brain trauma such as concussion via impairments in saccadic rhythm. A new tablet version of the K-D test using randomized numbers is now available, but reliability for this new version and comparison to the traditional K-D test has not yet been reported. Known for learning effects in the test, the aim of this study was to determine test–retest reliability and to compare performance of the new “randomized” version to the “traditional” K-D test version. We hypothesized that the “traditional” K-D test would show a greater rate of improvement with repeat application, compared with the “randomized” K-D test. Methods: Using a cross-sectional, repeated measures design in a healthy university student cohort (n = 96; age 21.6 ± 2.8 years; 49 women, 47 men), participants were required to complete the K-D test twice with a one-week break between testing sessions. Participants were randomly assigned into a “traditional” group, where they completed a test–retest of the established K-D protocol, using the same numbers; or the “randomized” group, where they completed test–retest protocol using 2 different sets of numbers. Results: Reliability testing showed a strong intraclass correlation coefficient for both the “traditional” test group (control group; 0.95 [CI: 0.91–0.97]...
Source: Journal of Neuro-Ophthalmology - Category: Opthalmology Tags: Original Contribution Source Type: research

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Source: SafetyLit - Category: International Medicine & Public Health Tags: Recreational and Sports Issues Source Type: news
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Source: SafetyLit - Category: International Medicine & Public Health Tags: Research Methods, Surveillance and Codes, Models Source Type: news
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Source: SafetyLit - Category: International Medicine & Public Health Tags: Economics of Injury and Safety, PTSD, Injury Outcomes Source Type: news
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Source: SafetyLit - Category: International Medicine & Public Health Tags: Age: Adolescents Source Type: news
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Source: Frontiers in Neurology - Category: Neurology Source Type: research
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Source: Frontiers in Neurology - Category: Neurology Source Type: research
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Source: SafetyLit - Category: International Medicine & Public Health Tags: TBI Source Type: news
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Source: SafetyLit - Category: International Medicine & Public Health Tags: Age: Adolescents Source Type: news
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Source: SafetyLit - Category: International Medicine & Public Health Tags: Age: Adolescents Source Type: news
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Source: SafetyLit - Category: International Medicine & Public Health Tags: Age: Adolescents Source Type: news
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