Gratitude Questionnarie (GQ-6): Evidence of construct validity in Brazil

This paper aims to adapt the Gratitude Questionnaire ( GQ-6 ) to Brazil, gathering evidence of its validity (factorial and criterion) and reliability. Two studies were carried out. Participants in Study 1 were 471 undergraduate students ( M age = 22.8; 59.2% females), who answered the GQ-6 and demographic questions. To conduct exploratory (EFA) and confirmatory (CFA) factorial analyses, respectively, this sample was split in two (n 1 = 226; n 2 = 245). The EFA (Hull method) indicated a one-dimensional solution (α = 0.87), which was corroborated by CFA (e.g., CFI = 0.99; α = 0.72). Participants in Study 2 were 515 undergraduate students ( M age = 23.1; 56.6% females), who answered the previous instruments, the 12-item Purpose of Life Test , and the Multi-Attitude Suicide Tendency Scale . Results corroborated the one-factor structure (e.g., CFI = 0.97; α = 0.71), showing evidence of criterion validity ( p