• Energy Research

The environmental identity (EID) scale, first published in 2003, was developed to measure individual differences in a stable sense of interdependence and connectedness with nature. Since then, it has been reliably correlated with measures of environmental behavior and concern. However, the original scale was developed based on U.S. college students, raising questions about its validity for other types of populations. This study revised the EID scale and tested it in five countries (four continents) with a total sample size of 1717 participants. Results support strong internal consistency across all locations. Importantly, EID was significantly correlated with behavior and with environmental concern. This research gives us greater confidence that the EID construct is meaningful across different cultural contexts. Because the revised EID was designed to be relevant to a wider range of people and experiences, it is recommended as a replacement for the 2003 version.