Key points are not available for this paper at this time.
This study contributes to an operationalization of the concept of action competence for sustainability through the theoretical development and empirical validation of a new 12-item Likert-scale questionnaire: the Self-Perceived Action Competence for Sustainability Questionnaire, SPACS-Q. Other scales in environmental and sustainability education (ESE) typically measure concepts such as pro-environmental and sustainability attitudes and behaviors, and therefore do not fully cover the concept of action competence for sustainability. An action differs from a 'mere' behavior in that it is voluntary and targeted at bringing about change, which is the overarching goal of ESE. We define action competence as a latent capacity among individuals to act sustainably. We introduce a novel scale measuring this seminal concept. Totally, 614 Swedish adolescents aged 12-19 participated in this study. The scale includes three latent subconstructs: i) knowledge of action possibilities, ii) confidence in one's own influence, and iii) the willingness to act. Confirmatory factor analyses, reliability measures and investigation of convergent validity reveal a questionnaire instrument with excellent psychometric quality. We put forward that the SPACS-Q is a novel and theory-driven, empirically reliable and valid, instrument, and encourage fellow researchers to use the SPACS-Q when investigating people's action competence for sustainability in various contexts.
Olsson et al. (Wed,) studied this question.