The Eco-Generativity Scale-Short Form: A Multidimensional Item Response Theory Analysis in University Students

The Eco-Generativity Scale (EGS) is a recently developed 28-item scale derived from a 4-factor higher-order model (ecological generativity, social generativity, environmental identity, and agency/pathways). The aim of this study was to develop a short-scale version of the EGS to facilitate its use with university students (N = 779) who will determine the future of our world’s ecosystem. Data analyses included removing misfitting items and assessing the psychometric properties of the EGS short form. The Eco-Generativity Scale-Short Form (EGS-SF) showed a good fit for a higher-order model composed of four factors and sixteen items (four items for each factor).