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Color Trails Test: regression-based norms for Russian-speakers
Zarui A Melikyan1, Jason R Bock1, Anna V Agranovich2
1Department of Neurobiology and Behavior, University of California, Irvine, CA, USA.
Summary
New regression-based norms for the Color Trails Test (CTT) improve accuracy for Russian-speaking adults. These norms identify fewer individuals as performing below average compared to standard manual norms.
Area of Science:
- Neuropsychological assessment
- Cognitive psychology
- Cross-cultural psychology
Background:
- The Color Trails Test (CTT) is a widely used neuropsychological tool.
- Cultural variations necessitate culture-specific norms for accurate test interpretation.
- Existing CTT norms are unavailable for Russian-speaking populations.
Purpose of the Study:
- Establish regression-based norms (RBNs) for the CTT in Russian-speaking adults.
- Compare CTT T-scores derived from RBNs versus standard manual norms.
Main Methods:
- Administered the CTT to 196 healthy Russian-speaking adults.
- Utilized multiple linear regression to develop RBNs.
- Calculated and compared T-scores using RBNs and manual norms via t-tests.
Main Results:
- CTT completion time correlated with age and education, not sex.
- Regression-based norms yielded higher CTT1 T-scores than manual norms (p < .001).
- Fewer participants were identified as below average using RBNs (7% vs. 18% for CTT1; 7% vs. 10% for CTT2).
Conclusions:
- The developed RBNs enhance the accuracy of CTT assessments in Russian-speaking adults.
- Improved diagnostic outcomes are anticipated with the use of these culture-relevant norms.
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