Introduction: Self-depreciation is a construct rarely studied by psychology, usually considered just a facet opposite to self-esteem. However, the literature presents its relationship with mental health and well-being, indicating the relevance of further investigations. Objective: The present research aimed to develop a measure for self-deprecation. Method: Were conducted two studies, both with 200 brazilian participants (M = 21,73; SD = 5,87). In addition to the developed instrument, the second study used the Rosenberg Self-Esteem Scale, the Single-Item Self-Esteem Scale, the Single-Item Narcissism Scale and the Aggression Questionnaire. Results: Initially, exploratory factor analysis and reliability analysis were performed on the instrument, which indicated a single factor organization, explaining 35 % of the variance and obtaining the reliability of ω = 0,89. The second study sought to carry out confirmatory analysis, calibration analysis, and correlations between self-deprecation, self-esteem, narcissism, and aggression. The scale had a good fit index of adjustment (CFI = 0,97; TLI = 0,97; RMSEA = 0,04; and SRMR = 0,05). There was a negative correlation between self-esteem (r = -0,75) and self-deprecation, as well as a positive one with all aggression factors. Conclusions: The Self-Deprecation Scale showed evidence of factor validity and reliability. Despite this, the limitations of the study are highlighted, especially the use of convenience sampling. It is concluded that the objectives were met.

Objective: The aim of this study was to confirm the structure of the Social Media Burnout Scale (SMBS) in the Brazilian context. Method: This is a psychometric study of a quantitative approach. Participants were 419 individuals from the general population, mostly college students, aged between 18 and 57 years (M =24,77; SD =6,75). Participants also answered a sociodemographic questionnaire, the Social Media Burnout Scale, and the Burnout Syndrome Assessment Scale in University Students (BSAS-us). Data were analyzed using the software JASP. Results: The results showed that the three-factor model of the SMBS had satisfactory fit indices in the Brazilian sample (χ²=77,75, df=32, CFI =0,97, TLI=0,97, RMSEA=0,05, 95%CI=0,04-0,07, SRMR=0,06). In addition, the three factors presented acceptable McDonald’s Omegas. Finally, the factor Exhaustion from the SMBS and Physical and the factor Emotional Exhaustion from the BSAS-us were correlated with r=0,32 (p<0,001), demonstrating convergent validity.   Discussion: The measure with the Portuguese name Escala de Burnout de Redes Sociais (EBRS) is the first valid and reliable measure to study the phenomenon in the Brazilian context.