1. Validation of the Korean Munich Chronotype Questionnaire.
- Author
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Suh S, Kim SH, Ryu H, Choi SJ, and Joo EY
- Subjects
- Adult, Female, Humans, Korea, Male, Pilot Projects, Reproducibility of Results, Time Factors, Translations, Wakefulness physiology, Young Adult, Circadian Rhythm physiology, Sleep physiology, Surveys and Questionnaires standards
- Abstract
Purpose: The Munich Chronotype Questionnaire (MCTQ) assesses actual sleep-wake timing and has advantages compared to prior chronotype questionnaires in that it differentiates sleep-wake patterns between work days and free days and uses corrected mid-sleep time on free days after correcting for accumulated sleep debt over the week to categorize chronotype. The current study, we validated the Korean version of the MCTQ., Methods: In this study, 310 participants (mean age = 27.09 ± 5.64; 78.1% females) completed the Korean version of the MCTQ., Results: MCTQ parameters were significantly correlated with MEQ (Morningness-Eveningness Questionnaire) scores (│r│ ≥ 0.48), and test-retest reliability was ≥ 0.72. Cutoff scores of 2.5%, which correlated to 2.36 and 8.57 mid-sleep times in our sample, showed the best convergence with MEQ when categorizing chronotype., Conclusions: Our study suggests that the MCTQ is a useful questionnaire in assessing chronotype in young adults.
- Published
- 2018
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