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Validity and Reliability of the Korean Version of Reduced Morningness–Eveningness Questionnaire: Results From a General Population-Based Sample
Accuracy and Consistency of the Korean Short Morningness-Eveningness Questionnaire in the General Population
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Abstract
A total of 3,030 individuals yielded an average rMEQ score of 14.0 ± 3.4.
- The Korean version of the reduced Morningness-Eveningness Questionnaire (rMEQ) shows a substantial positive correlation with the standard MEQ scores (r = 0.859, p < 0.001).
- rMEQ scores are significantly negatively correlated with the midpoint of sleep on free days adjusted for sleep debt, indicating a strong association with (r = -0.388, p < 0.001).
- The internal consistency of the rMEQ, as measured by , is 0.609.
- The rMEQ may serve as a valid and reliable tool for assessing chronotype in the general Korean population.
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Key numbers
0.859
rMEQ Score Correlation
Correlation between rMEQ and MEQ scores
0.609
Internal Consistency
for the rMEQ
-0.388
Negative Correlation with Sleep Midpoint
Correlation with midpoint of sleep on free days