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Spanish Adaptation of the Morningness-Eveningness-Stability-Scale improved (MESSi)
The Spanish Journal of Psychology
The aim of the present study was to conduct the preliminary adaptation of the Morningness-Eveningness-Stability-Scale improved (MESSi) to Spanish population, testing its factor structure and construct validity. Participants were 261 adults (65% women; M = 31.4, SD = 12.01) who filled out measures of Morningness-Eveningness (MESSi and CSM), sleep habits, personality traits, positive and negative affect, and subjective level of alertness during the day. Psychometric results supported a threedoi:10.1017/sjp.2017.21 pmid:28462736 fatcat:5ps32r5xkfcrtjbef5dipme65q