Clayton · 2003
A 24-item scale measuring the degree to which the natural environment is an important part of an individual's self-concept. Developed by Clayton (2003) as a comprehensive measure of environmental identity — the sense that one is part of the natural world, that nature is important to one's sense of self, and that one's relationship with nature is a meaningful aspect of who one is. Covers multiple facets of environmental identity including childhood nature experiences, current nature engagement, environmental values, and the centrality of nature to self-definition. One of the most widely used environmental identity measures in the field.
Clayton, S. (2003). Environmental identity: A conceptual and an operational definition. In S. Clayton & S. Opsotow (Eds.), Identity and the natural environment (pp. 45–65). MIT Press.
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