When correlated to a broad range of pro-environmental behaviors, biospheric values typically have a positive correlation while egoistic values typically have a negative correlation. However, people who strongly endorse egoistic values might undertake pro-environmental behavior involving attempts to influence others. This article describes a study that assessed the relationship between values and the likelihood of students to attempt to influence their housemates in engaging in pro-environmental behavior. To measure this type of influence behavior, the authors developed the Environmental Social Influence Behavior questionnaire, which was then used with 193 students for this study. Both biospheric and egoistic values correlated with influence...