Abstract
Objective:to confirm the factorial validity of the Maslach Burnout Inventory – Human Services Survey version in a sample of health professionals from the emergency services.Method:a quantitative, exploratory, descriptive and analytical study. Two hundred and eighty-two health professionals participated in the study. For data collection, a sociodemographic questionnaire and the Maslach Burnout Inventory were used. The psychometric sensitivity for the MBI-HSS items was estimated by measures of central tendency, variability and the distribution shape. Internal consistency was estimated using Cronbach’s alpha coefficient and the adequacy of the sample was verified using the Kaiser-Meyer-Olkin (KMO) index. As indexes for assessing the quality of fit of the model, the chi-square ratio by the degrees of freedom (χ2/DoF), the comparative fit index (CFI), the goodness of fit index (GFI), the Tucker Lewis index (TLI) and the root mean square error of approximation (RMSEA) were considered. To test data fit, the maximum likelihood method was used.Results:the three-factor structure of the Maslach Burnout Inventory was confirmed. Items 9, 12, 15 and 16 had a factorial weight below what was considered appropriate and were removed from the model. The second order hierarchical model with the aforementioned modifications presented an adequate adjustment to the data and can be considered the best and most parsimonious model tested according to the information theory indexes. The internal consistency of the instrument’s factors was recalculated considering the exclusion of the items and the three factors were considered adequate.Conclusion:the results obtained show that the Maslach Burnout Inventory is a reliable and factorially valid instrument for measuring the burnout syndrome in emergency service professionals in Brazil.
Highlights
The Maslach Burnout Inventory – Human Service Survey (MBI-HSS) stands out as the most used instrument to assess the burnout syndrome and its configuration in three dimensions has been confirmed, worldwide, in different populations
Considering the variability of results in the studies already carried out with MBI-HSS and the relevance of confirmatory analyses for the validation of this important measurement instrument in different populations and contexts, this study aims to confirm the factorial validity of the Maslach Burnout Inventory – Human Services Survey version in a sample of health professionals from the emergency services
The sample consisted of 282 health professionals with a mean age of 40 years old (SD±9.4), mostly characterized by women (79.1%), married or with partners (52.1%) and with children (66.3%)
Summary
The Maslach Burnout Inventory – Human Service Survey (MBI-HSS) stands out as the most used instrument to assess the burnout syndrome and its configuration in three dimensions has been confirmed, worldwide, in different populations. It is relevant to develop analyses that prove that the items on a scale measure exactly what they propose. This is a psychological syndrome that develops in response to chronic interpersonal stressors in the workplace[1,2,3]. The Maslach Burnout Inventory was developed in 1981, originally to be applied to human service professionals. The three dimensions that make up the scale emerged from exploratory items collected from interviews with health care professionals, with the aim of reflecting on the experiences related to the phenomenon[1]. With increasing interest in the burnout syndrome, other versions of this instrument have been developed[3]
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