title: Validation of theSpanish Short Self-Regulation Questionnaire (SSSRQ)through Rasch Analysis.
abstract: Background:The aim of the study was to psychometrically characterize theSpanish Short Self-Regulation Questionnaire(SSSRQ) through Rasch analysis.Materials and Methods:831 Spaniard university students (262 men), between 17 and 39 years of age and ranging from the first to the 5th year of studies, completed the SSSRQ questionnaire. Confirmatory factor analysis (CFA) was carried out in order to establish structural adequacy. Afterward, by means of the Rasch model, a study of each sub scale was conducted to test for dimensionality, fit of the sample questions, functionality of the response categories, reliability and estimation of Differential Item Functioning by gender and course.Results:The four sub-scales comply with the unidimensionality criteria, the questions are in line with the model, the response categories operate properly and the reliability of the sample is acceptable. Nonetheless, the test could benefit from the inclusion of additional items of both high and low difficulty in order to increase construct validity, discrimination and reliability for the respondents. Several items with differences in gender and course were also identified.Discussion:The results evidence the need and adequacy of this complementary psychometric analysis strategy, in relation to the CFA to enhance the instrument.
authors.affiliation: School of Psychology, Fundación Universitaria Konrad Lorenz Bogotá, Colombia.
authors.forename: Angélica
authors.initials: A
authors.lastname: Garzón Umerenkova
authors.affiliation: Department of Psychology, School of Psychology, University of AlmeríaAlmería, Spain; Department of Psychology, Universidad Autónoma de ChileSantiago, Chile.
authors.forename: Jesús
authors.initials: J
authors.lastname: de la Fuente Arias
authors.affiliation: Department of Psychology, School of Psychology, University of Almería Almería, Spain.
authors.forename: José Manuel
authors.initials: JM
authors.lastname: Martínez-Vicente
authors.affiliation: Department of Education, Education and Care Cardiff, UK.
authors.forename: Lucía
authors.initials: L
authors.lastname: Zapata Sevillano
authors.affiliation: Department of Educational and Evolutionary Psychology, University of Granada Granada, Spain.
authors.forename: Mari Carmen
authors.initials: MC
authors.lastname: Pichardo
authors.affiliation: Department of Educational and Evolutionary Psychology, University of Granada Granada, Spain.
authors.forename: Ana Belén
authors.initials: AB
authors.lastname: García-Berbén
keywords: Rasch Model; self-regulation measurement; self-regulation questionnaire; university students; validity