Psychometric properties of the Spanish version of the Environmental Action Scale (EAS) / Propiedades psicométricas de la versión española de la Escala de Acción Colectiva Ambiental (EACA)

Abstract The Environmental Action Scale (EAS) analyses engagement in civic actions which seek to have an environmental impact. The EAS has shown adequate psychometric properties when used with English-speaking samples, but there are no studies assessing how it works in other linguistic and cultural groups. The aim of the study is to present the Spanish version of the EAS along with evidence that supports the utility of the scale to be used in the Spanish population. The Spanish version obtained after the adaptation process was first administered to 277 participants. The results pointed to items that did not function adequately, so a revised version was created and administered to 286 participants. Validity evidence based on internal structure showed that the EAS consistently evaluates two dimensions of the construct: Participation Activities and Leadership Activities. Evidence based on relationships with other variables indicated that the construct is also related to other variables, such as environmental identity and moral convictions.