This paper presents the validation of the Satisfaction with Life Scale (SWLS). Participants were 177 workers (74% males) between 19 and 64 years of age (M = 36.24, SD = 9.75) from fishing companies located in different cities of Peru. Evidence of validity related to the internal structure was obtained through the confirmatory factor analysis complemented with the analysis of the average variance that determines the internal convergence between the items. In addition, evidence of validity was examined to assess its relationship with other constructs: the satisfaction with life fulfilled the role of dependent variable versus the effects of the burnout syndrome. The reliability of the internal consistency was calculated with Cronbach’s alpha coefficient, McDonald’s omega coefficient, and Mueller & Hancock ́s H coefficient. The results demonstrate a one-dimensional structure of the ...