Feeling important to society as a positive factor: the association between societal mattering and well-being.

The present dissertation aims to explore the role of mattering in promoting individuals’ well-being, with a specific focus on societal mattering. Although mattering has received limited attention from its first definition, recent research has emphasised its importance as a psychological resource, contributing positively to individuals’ functioning. Chapter 1 depicts the theoretical framework and defines the construct of mattering. Chapter 2 presents a systematic review and a meta-analysis, showing a generally positive association between mattering and well-being, especially from a eudaimonic perspective, and a lack of research on societal mattering. Chapter 3 introduces three validation studies of the Italian and Spanish adaptations of the Societal Mattering Scale (Schmidt, 2018). Findings support the validity and reliability of these adaptations and highlight the unique contribution of societal mattering to well-being. Chapter 4 describes a cross-cultural study comparing the association between societal mattering, self-esteem and well-being among Italian and Spanish university students. Findings show cultural differences in association patterns. Finally, Chapter 5 assesses the efficacy of three brief interventions to enhance university students’ perception of mattering, providing some positive outcomes, particularly in societal and university mattering dimensions. Despite some limitations, this dissertation contributes to the literature on mattering by providing insights into its role in fostering well-being. It emphasises the importance of considering societal mattering as a relevant factor to capture how the broader context affects individuals’ well-being.