A Adan1, H Caci, G Prat. 1. Department of Psychiatry and Clinical Psychobiology, School of Psychology, University of Barcelona, Passeig Vall d'Hebrón 171, 08035 Barcelona, Spain. aadan@ub.edu
Abstract
AIM: The aim of this study was to examine the reliability of the Spanish version of Composite Scale of Morningness (CSM) and its ability to measure the circadian typology. SUBJECTS AND METHODS: Voluntary and unpaid psychology students (N= 391; 132 men and 259 women), aged between 17 and 33, completed the questionnaire between the months of September and December. RESULTS: The total score was independent of age and gender, with a close to normal distribution and a non-significant negative skewness. The internal consistency was high (Cronbach's alpha= 0.87) and factor analysis extracted three factors labeled Time of Retiring (items 2 and 7), Activity Planning (items 8, 9, and 13) and Morning Affect (items 3-6, and 10-12). With the 10th and 90th percentiles as cut-off scores, scorers below 22 (N= 40; 10.2%) are classified as evening-types and scorers above 39 as morning-types (N= 28; 7.2%). CONCLUSION: The Spanish questionnaire shares most of the good psychometric properties of other versions of the CSM, and thus can be used for Spanish-speaking student samples. Nevertheless, further studies of normative data in workers and aged subjects are needed in order to validate CSM.
AIM: The aim of this study was to examine the reliability of the Spanish version of Composite Scale of Morningness (CSM) and its ability to measure the circadian typology. SUBJECTS AND METHODS: Voluntary and unpaid psychology students (N= 391; 132 men and 259 women), aged between 17 and 33, completed the questionnaire between the months of September and December. RESULTS: The total score was independent of age and gender, with a close to normal distribution and a non-significant negative skewness. The internal consistency was high (Cronbach's alpha= 0.87) and factor analysis extracted three factors labeled Time of Retiring (items 2 and 7), Activity Planning (items 8, 9, and 13) and Morning Affect (items 3-6, and 10-12). With the 10th and 90th percentiles as cut-off scores, scorers below 22 (N= 40; 10.2%) are classified as evening-types and scorers above 39 as morning-types (N= 28; 7.2%). CONCLUSION: The Spanish questionnaire shares most of the good psychometric properties of other versions of the CSM, and thus can be used for Spanish-speaking student samples. Nevertheless, further studies of normative data in workers and aged subjects are needed in order to validate CSM.
Authors: Diego A Ojeda; Claudia S Perea; Annjy Suárez; Carmen L Niño; Rafael M Gutiérrez; Sandra López-León; Ana Adan; Humberto Arboleda; Andrés Camargo; Diego A Forero Journal: Neurol Sci Date: 2013-06-01 Impact factor: 3.307
Authors: Claudia S Perea; Carmen L Niño; Sandra López-León; Rafael Gutiérrez; Diego Ojeda; Humberto Arboleda; Andrés Camargo; Ana Adan; Diego A Forero Journal: Open Neurol J Date: 2014-04-18
Authors: María Dolores Toscano-Hermoso; Félix Arbinaga; Eduardo J Fernández-Ozcorta; Juan Gómez-Salgado; Carlos Ruiz-Frutos Journal: Int J Environ Res Public Health Date: 2020-04-16 Impact factor: 3.390