<p>Evaluación de la autorregulación comportamental: un estudio de validación</p>

Introduction. Self-regulation is planning and managing behavior appropriately and flexibly. It predicts well-being, health, and academic performance, among other things. The psychometric characterization of the Abbreviated Self-Regulation Questionnaire (CAR-abr.), which consists of 17 items, is presented. It is a versatile instrument extensively used in various countries and professional contexts, such as education or clinical settings. Method. A content validation of the questionnaire was conducted to verify its linguistic and cultural adequacy, followed by an application to a convenience sample. 710 Colombian university students from 12 majors, aged 18 to 33 years (M = 20.3, SD = 4.3), 31.5% men participated. Results. The results indicate a good fit of the items to the Rasch model, adequate functioning of the Likert scale, and evidence of construct validity, although the questionnaire would benefit from including items of greater difficulty. The reliability was .84 for individuals and .98 for items. The self-regulation score correlated positively with flourishing (.416**, p<.01) and mental health (.372**, p<.01), and negatively with bad habits (-.343**, p<.01). Discussion and conclusions. The test can be used in various measurement and evaluation contexts. The results allow for establishing a level of self-regulation with sufficient reliability and evidence of validity. The possible uses and limitations of CAR-abr. for psychological measurement and evaluation are discussed.