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Revista Latinoamericana de Psicología

Print version ISSN 0120-0534


DRESCH, Virginia; SANCHEZ LOPEZ, María del Pilar  and  APARICIO GARCIA, Marta Evelia. Differences in personality between morning and evening types. Rev. Latinoam. Psicol. [online]. 2005, vol.37, n.3, pp.509-522. ISSN 0120-0534.

The aim of this study was to attempt to answer the question of whether subjects with different circadian typology (morningness-eveningness) have a differential personality profile, going beyond the aim of relating the circadian typology with isolated and more general personality variables, such as Extraversing-Introversing. The research has been carried out with 804 participants, university students from a university in the South of Brazil (Novo Hamburgo-RS/ BR) of 33 different degree courses, using the MIPS- Millon Index of Personality Styles (Millon, 1994) and the CS-Composite Scale (Smith, Reilly and Midkiff, 1989) as a measurement of Personality Styles and the chronotype, respectively. The findings point to a personality profile which is more socially desirable for Morningness (higher mark in the Enhancing, Systematizing and Conforming scales), whereas those for Eveningness are characterised by being less adapted to their environment (higher mark in Preserving, Innovating; Hesitating, Dissenting and Agreeing scales). That confirms the usefulness of having a more flexible, detailed frame of reference, such as that of Theodore Millon.

Keywords : Personality; Chronotype; Millon; MIPS; Chronopsychology.

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