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Related Experiment Videos

Measuring sleep habits without using a diary: the sleep timing questionnaire.

Timothy H Monk1, Daniel J Buysse, Kathy S Kennedy

  • 1Clinical Neuroscience Research Center, Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center, PA 15213, USA. monkth@msx.upmc.edu

Sleep
|April 10, 2003
PubMed
Summary

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The Sleep Timing Questionnaire (STQ) offers a reliable and valid method for assessing sleep patterns, serving as an efficient alternative to lengthy sleep diaries for measuring sleep timing.

Area of Science:

  • Sleep Medicine
  • Psychometrics

Background:

  • Traditional sleep diaries are time-consuming and may not always be practical for capturing sleep timing.
  • Developing efficient and accurate sleep assessment tools is crucial for research and clinical practice.

Purpose of the Study:

  • To create a single-administration questionnaire for sleep timing that yields results comparable to a 2-week sleep diary.
  • To evaluate the reliability and validity of the Sleep Timing Questionnaire (STQ).

Main Methods:

  • The study involved assessing test-retest reliability of the STQ in 40 subjects.
  • Convergent validity was examined by comparing STQ data with wrist actigraphy (n=23) and a 2-week sleep diary (n=101, 93).
  • Correlations with age and chronotype were also analyzed.
Keywords:
NASA Discipline Regulatory PhysiologyNon-NASA Center

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Main Results:

  • The STQ demonstrated good test-retest reliability for bedtime (r=0.705) and waketime (r=0.826).
  • Convergent validity was supported by correlations with actigraphy and sleep diary data for bedtime and waketime.
  • STQ-derived sleep latency and wake after sleep onset (WASO) also showed reliable correlations with diary measures.

Conclusions:

  • The Sleep Timing Questionnaire (STQ) is a reliable and valid instrument for measuring sleep timing.
  • The STQ provides a time-efficient alternative to traditional sleep diaries for sleep assessment.