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Toward a Classification of Chronotype Questionnaires.

Arcady A Putilov1,2

  • 1Independent Research Group for Biomedical Systems Math-Modeling, Berlin, 12489, Germany.

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Summary

Chronotype questionnaires help understand human adaptation to daily rhythms. This study developed a system to classify 75 questionnaires, aiding researchers in selecting the best tool for their specific chronobiology research needs.

Keywords:
chronotypingclassificationindividual variationmorningness-eveningnessself-assessment

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Area of Science:

  • Chronobiology
  • Psychometrics
  • Human Adaptation

Background:

  • Chronotyping assesses individual differences in adapting to 24-hour environmental cycles.
  • The number and variety of chronotype questionnaires have significantly increased over 50 years.
  • Difficulty exists in selecting appropriate questionnaires for specific research questions.

Purpose of the Study:

  • To develop a structured system for classifying and comparing chronotype questionnaires.
  • To aid researchers in selecting optimal chronotype assessment tools.
  • To provide a framework for predicting properties of new questionnaires.

Main Methods:

  • A comprehensive literature search identified 75 chronotype questionnaires.
  • Questionnaire properties were systematically defined and documented.
  • A classification system based on defined properties was developed.

Main Results:

  • 75 chronotype questionnaires were identified and analyzed.
  • 60 questionnaires assessed chronotype exclusively; 15 assessed chronotype and other factors.
  • A set of 20 properties was proposed for questionnaire classification.

Conclusions:

  • The proposed classification system facilitates navigation of the diverse landscape of chronotype questionnaires.
  • Researchers can use this system to select the most suitable instrument for their studies.
  • The system aids in predicting the characteristics of novel chronotype assessment tools.