Psicologia, reflexao e critica : revista semestral do Departamento de Psicologia da UFRGS · 2026
Gratitude questionnaire: psychometric properties in Portuguese adult samples and evidence of validity.
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Neto Félix, Rey Lourdes, Chamizo-Nieto María Teresa, Wallace Agustín
Аннотация
BACKGROUND: Gratitude has been increasingly studied as a key psychological strength associated with subjective well-being, positive interpersonal relationships, and mental health. The assessment of gratitude through validated instruments is essential for both research and clinical practice. Although the Gratitude Questionnaire 6 items (GQ-6) is widely used in various cultural contexts, there is a need to evaluate its psychometric properties and cultural relevance in Portuguese-speaking populations, particularly among adults.
OBJECTIVE: The present study aimed to examine the psychometric properties and validity evidence of the Portuguese version of the Gratitude Questionnaire, with a focus on its internal structure, score reliability, and evidence based on relations to other variables.
METHODS: A final sample of 810 Portuguese adults (Mage = 43.79; SD = 23.69) completed the Portuguese version of the GQ-6. Exploratory factor analysis and confirmatory factor analysis were conducted to evaluate the instrument's internal structure. A subsample of 362 adults completed the revised 5-item version (GQ-5), along with measures of life satisfaction and loneliness, to assess evidence based on relations to other variables.
RESULTS: Findings supported a one-factor structure, with the 5-item version showing a better model fit than the original 6-item scale. The GQ-5 demonstrated significant positive correlations with life satisfaction and negative correlations with loneliness, supporting this source of validity evidence. The instrument also exhibited adequate internal consistency.
CONCLUSION: The Portuguese version of the GQ-5 is a psychometrically sound and culturally appropriate measure for assessing gratitude in adult populations.
OBJECTIVE: The present study aimed to examine the psychometric properties and validity evidence of the Portuguese version of the Gratitude Questionnaire, with a focus on its internal structure, score reliability, and evidence based on relations to other variables.
METHODS: A final sample of 810 Portuguese adults (Mage = 43.79; SD = 23.69) completed the Portuguese version of the GQ-6. Exploratory factor analysis and confirmatory factor analysis were conducted to evaluate the instrument's internal structure. A subsample of 362 adults completed the revised 5-item version (GQ-5), along with measures of life satisfaction and loneliness, to assess evidence based on relations to other variables.
RESULTS: Findings supported a one-factor structure, with the 5-item version showing a better model fit than the original 6-item scale. The GQ-5 demonstrated significant positive correlations with life satisfaction and negative correlations with loneliness, supporting this source of validity evidence. The instrument also exhibited adequate internal consistency.
CONCLUSION: The Portuguese version of the GQ-5 is a psychometrically sound and culturally appropriate measure for assessing gratitude in adult populations.