A correlational and comparative study was carried out on Organizational Socialization (SO) and Labor Well-being (BL) during the COVID-19 pandemic. The total n was 371, of which 126 were Mexicans, 118 Peruvians, and 127 Ecuadorians. The instruments used were the General Labor Well-being Questionnaire based on a two-dimensional well-being model: psychosocial well-being (affects, competencies and expectations) and collateral effects (somatization, attrition and alienation) created for a research on quality of work life, in addition of the Organizational Socialization Inventory of Taormina, which consists of items that measure four dimensions: training, understanding, peer support and future prospects that have been related to mental health and well-being, to verify hypotheses that would support the protective role of OS against the collateral effects of stress, job uncertainty and technological changes, as well as differences between Peruvians and Mexicans with Ecuadorians during the COVID-19 pandemic. The findings showed negative correlations between collateral effects and organizational socialization, at different levels according to each country. In Mexico, Ecuador and Peru positive correlations were found with the affect dimension, while somatization, attrition and alienation had medium correlations. When comparing the samples (ANOVA), it was obtained that the affect, somatization and socialization scales showed differences in the samples of the three countries, so it can be concluded that organizational socialization fulfills a rol as a generator of positive emotions and that allows to cushion negative effects of stress.
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