The adaptation and validation of the Turkish Positive Emotion Assessment of Contentment Experience (PEACE) Scale

The emotion, contentment, arises from the perception of completeness in life. The current work aims to adapt and validate the Positive Emotion Assessment of Contentment Experience (PEACE) scale for Turkish language speakers. Data were collected online from two samples of Turkish adults to examine the construct validity, criterion validity, and internal consistency of the adapted scale. Exploratory and confirmatory factor analyses confirmed the expected single-factor structure. Furthermore, reliability tests and item analysis indicated good internal consistency (α = 0.94, ω = 0.94). All 15 items discriminated between groups with higher and lower scores. In addition, the scale has good convergent validities (CR = 0.94, AVE = 0.52) as shown by its correlations with lower affective symptoms, as well as higher unconditional self-acceptance and life satisfaction. Finally, measurement invariance was performed based on gender. Findings showed that the Turkish PEACE scale is a valid and reliable measurement instrument with strong psychometric properties, contributing to the development of diverse and inclusive cultural tools worldwide.