Manipulating Environmental Commitment: A Replication and Extension

Environmental commitment, the subjective experience of dependence on the natural environment, is marked by a long-term orientation and psychological attachment towards the natural environment. The current research replicates and extends previous research on temporarily increasing environmental commitment (Davis et al., 2009). We employed Davis et al.'s manipulation in two experimental studies (one laboratory, one online): we asked participants to spend time writing either about ways in which they are interdependent with the natural environment (high commitment manipulation) or unconnected with the environment (low commitment manipulation). In both studies we replicated the key finding that reflecting on one's interdependence with the environment increases commitment. We extended the previous research by finding evidence that this commitment effect was mediated by satisfaction with one's relationship to the environment. We did not replicate the original findings that the interdependence manipulation influences environmental behavioral intentions.