Encephale
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The aim of this study was to investigate the theoretical dimensionality of burnout measurement (MBI). The objective of the study was to check the working hypothesis according to which the subscales of the Maslach Burnout Inventory (MBI) such as "emotional exhaustion" and "cynicism" (depersonalization) were not correlated with that of "personal achievement" (professional efficacy). To do so, we performed a meta-analysis [Maslach and Jackson, The Maslach Burnout Inventory, 1981, 1986]. ⋯ The study revealed two points: (1) the homogeneity of the studies included concerning the fact that assessment of emotional exhaustion and cynicism (depersonalization) are always correlated positively; (2) the heterogeneity of the studies included concerning the fact that personal achievement is correlated with the other subscales of burnout (MBI). This study confirms the hypothesis.