Article Dans Une Revue Self and Identity Année : 2025

Development of the selflessness/self-centeredness Inventory – trait (SSI-T)

Résumé

Selflessness and self-centeredness are distinct psychological functionings that respectively favor authentic-durable and fluctuating happiness. As no current measure exists to systematically assess these functionings, the goal of this research was to develop a reliable psychometric instrument to assess them at the trait level: the Selflessness/Self-centeredness Inventory – Trait (SSI-T). Exploratory analysis (Study 1, N = 400) and confirmatory analysis (Study 2, N = 613) indicated that the SSI-T measured seven factors representing the modes of psychological functioning. Selflessness included four components (i.e. connection with humanity, connection with nature, compassion, and decentering), while self-centeredness included three components (i.e. self-focus, self-importance, and hedonic process). Validity analysis (Study 3, N = 250) with happiness, mental health, and transcendence-related indicators supported both construct and incremental validity of the scale.

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hal-05137629 , version 1 (01-07-2025)

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Lucas David, Nicolas Pellerin, Michaël Dambrun. Development of the selflessness/self-centeredness Inventory – trait (SSI-T). Self and Identity, 2025, ⟨10.1080/15298868.2025.2515170⟩. ⟨hal-05137629⟩
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