The aim of the present work was to validate the reduced version of the Morningness–Eveningness Questionnaire (MEQr) using circadian motor activity as external criterion. The MEQr was administered to a sample of 130 university students, 42 males and 88 females. All the students wore an actigraph (AMI 32K) on the non-dominant wrist for three consecutive nights and days. Acrophase was computed using cosinor analysis. The circadian motor activity of evening types presented a significant phase delay versus intermediate and morning types. Results show that the MEQr has good external validity.

Validity of the reduced version of the Morningness-Eveningness Questionnaire

FABBRI, Marco
2006

Abstract

The aim of the present work was to validate the reduced version of the Morningness–Eveningness Questionnaire (MEQr) using circadian motor activity as external criterion. The MEQr was administered to a sample of 130 university students, 42 males and 88 females. All the students wore an actigraph (AMI 32K) on the non-dominant wrist for three consecutive nights and days. Acrophase was computed using cosinor analysis. The circadian motor activity of evening types presented a significant phase delay versus intermediate and morning types. Results show that the MEQr has good external validity.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11591/186546
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