Propriedades psicométricas do Maslach Inventory Burnout - General Survey: revisão sistemática e metanálise

Abstract

Context: Burnout is a syndrome resulting from chronic stress that is not adequately managed in the workplace, characterized by three dimensions: feelings of exhaustion; negative or cynical feelings related to work; and a sense of ineffectiveness and lack of accomplishment. The Maslach Inventory Burnout - General Survey (MBI-GS) has been widely used to identify Burnout Syndrome in the work environment. Objective: To analyze the psychometric properties of the Maslach Inventory Burnout - General Survey (MBI-GS). Method: The search was conducted in national and international literature, considering four databases: EMBASE, MEDLINE, Web of Science, and APA PsycInfo. The PRISMA method (Preferred Reporting Items for Systematic reviews and Meta-Analyses) was used, and the PICOS strategy (Population, Intervention, Comparison(s), Outcome, and Study design) guided the research question. Results: The search strategy returned 10,994 studies, of which 18 primary studies were included in this systematic review. Factorial validity was mainly verified through confirmatory factor analyses, which demonstrated that the items of the MBI-GS are adequately grouped into their respective dimensions. Internal consistency was generally assessed using Cronbach's Alpha, with an average result of 0.85 for Emotional Exhaustion; 0.76 for Cynicism; and 0.77 for Professional Efficacy. Conclusion: The reported psychometric evidence supports the quality of measurement of the MBI-GS and endorses its use.