“…It may also be inferred from the results that Tehran residents need to be more motivated to improve their environmental performance. The intrinsic or extrinsic motivations of individuals are among the most critical factors in determining the success of recycling programs ( Nguyen and Watanabe, 2020 , REMR, 2019 ). The intrinsic motivation of people in developing nations, such as Iran, is usually less evident than in developed countries.…”