Morningness-Eveningness Questionnaire.

MEQ

What it measures

Circadian chronotype / diurnal preference (morning vs evening type)

Length and format

19 items. Multiple-choice / time-of-day items, weighted; summed 16-86; 16-41 evening, 42-58 intermediate, 59-86 morning (self-report questionnaire)

Language versions

Many languages incl. ES, PT, DE, IT, PL, SV, ZH, JA, FR

Normative data

Normative data for this instrument is held in our reference library. The per-population breakdown is not published here.

Licence

open with attribution

Licence classification is a research judgement by the catalogue’s authors, not legal advice, and it can be out of date. Confirm terms with the copyright holder or publisher before using an instrument, especially for commercial use.

Reference

Horne, J. A., & Ostberg, O. (1976). A self-assessment questionnaire to determine morningness-eveningness in human circadian rhythms. International Journal of Chronobiology, 4(2), 97-110.