Response Format Effects in Questions about Norms: Implications for the Reliability and Validity of the Normative Approach
Hall, T., & Roggenbuck, J. (2002). Response format effects in questions about norms: Implications for the reliability and validity of the normative approach. Leisure Sciences, 24(3-4), 325-337. doi:10.1080/01490400290050772.
The Personal Threat of Environmental Problems as Predictor of Environmental Practices
Baldassare, M. & Katz, C. (1992). The personal threat of environmental problems as predictor of environmental practices. Environment and Behavior, 24, 5, 602-616.