Factorial Structure of the Morningness-Eveningness-Stability-Scale (MESSi) and Sex and Age Invariance.

ABSTRACT: Assessing morningness-eveningness preferences (chronotype), an individual characteristic that is mirrored in daily mental and physiological fluctuations, is crucial given their overarching influence in a variety of domains. The current work aimed to investigate the best factor structure of an instrument recently presented to asses this characteristic: the Morningness-Eveningness-Stability-Scale improved (MESSi). For the first time, the originally proposed three-factor structure was pitched against a uni- and a two-factor solution. Another novelty was to establish that the best-fitting model would be invariant in relation to sex and age, two variables that influence chronotype. A Confirmatory Factor Analyses on the data obtained from a sample of 2096 German adults (age: 18-76; M = 25

SUBMITTER: Vagos P 

PROVIDER: S-EPMC6344426 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature