Given the multitude of attitude scales, we examined the relationship between the 2-Major Environmental Values model (2-MEV) and the New Environmental Paradigm scale (NEP) based on a 6585 child sample over a 9-year period. The students participated in a three-day outdoor earth education program at field centers in three different US states (Arizona, Pennsylvania, and Louisiana). We further investigated the scales’ sensitivity to program effects, relating cognitive achievement and attitude with respect to a pro-environmental indicator of behavior (Y key). The NEP and Preservation correlated highly, while the subscales Utilization and Preservation showed a strong inverse relationship. Based on further reliability and validity scores, and in line with the literature, this pointed to a unidimensional Preservation of Nature scale as a concise attitude measurement. In structural equation modelling, Preservation related to knowledge gains and the Y key, and effects from Preservation on knowledge held true for all three states. This suggests Preservation as one factor influencing cognitive achievement and environmentally conscious performance. Regarding program effects, the Earthkeepers program seemed to induce pro-environmental shifts based on knowledge gains and attitude changes (Preservation increasing and Utilization decreasing). Pro-environmental shifts were most prominent for those who received the Y key.

Environmental education aims to affect environmental knowledge and attitude to ultimately induce pro-environmental behavior. Based on 247 upper elementary school students, we tested the impact of an outdoor-based earth education program on environmental knowledge and attitude with a pre-post design. Both outcome measures were Rasch scales. Environmental knowledge is a composite of 27 system, action, and effectiveness knowledge items, and environmental attitude is a composite of 13 evaluative statements and 11 self-reported behaviors about nature preservation. Our analysis revealed gains in environmental knowledge and attitude. The convergence between knowledge and attitude increased significantly from pre- to post-program, and attitude played a significant role in knowledge acquisition.

Attitude toward nature and environmental attitude are two distinct propensities that both further learning about the environment. The present study builds upon prior research by investigating the role of attitude toward nature in learning about environmental issues. In a sample of 1,486 university, middle and high school students (M_age = 15.25, SD = 3.2), we first calibrated a pool of items expressing attitude toward nature. We found differences in how adolescents expressed their appreciation for nature at different ages. It is essential to consider these differences to accurately ascertain adolescents’ attitudes toward nature. We then conducted a mediation test. Whereas attitude toward nature determined the levels of knowledge students gained and retained, environmental attitude fully mediated the environmental knowledge subsequently demonstrated by the students. Our research suggests that researchers and educators may benefit from taking an experiential approach to learning about sustainable development by promoting appreciation for nature.