Wicker is recognized for significant contributions to ecological psychology and for a widely cited paper on the attitude-behavior relationship.
Ecological Psychology
His Introduction to Ecological Psychology was praised by reviewers for providing a readable and personal account of the empirical and theoretical works of ecological psychologists. One reviewer noted these contributions of the text: connection of ecological psychology with other specialties in psychology and with related disciplines, revision of traditional positions that Wicker viewed as unnecessarily restrictive, and "development of original, constructive advances within the framework". In subsequent publications, Wicker sought to refine and elaborate the basic environmental unit of ecological psychology, the behavior setting. According to Scott, "Wicker emerged as the individual in this group of researchers who has taken the theoretical conceptualizations the farthest. Wicker proposed four extensions of behavior setting theory, now adding considerations of the life cycles of behavior settings, the larger contextual environments of the molar level setting environments, the individuals within the settings, and more practical applications of settings".
In 1969, Wicker published a review paper on the relationship between verbal expressions of attitudes and overt behaviors that stimulated much debate and research in social psychology. The paper was designated a "citation classic" in 1980.
Wicker, A. W.. Behavior settings reconsidered: Temporal stages, resources, internal dynamics, context. In D. Stokols & I. Altman, Handbook of environmental psychology. New York: Wiley.
Wicker, A. W. . Making sense of environments. In W. B. Walsh, K. H. Craik, & R. H. Price, Person-environment psychology: Models and perspectives. Hillsdale, NJ: Erlbaum.
Wicker, A. W. . Ecological psychology: Historical contexts, current conception, prospective directions. In R. B. Bechtel & A. Churchman, Handbook of environmental psychology . New York: Wiley.
Wicker, A. W. Toward a pragmatic ecological psychology. "MERA Journal, 14," 11-17.
Wicker, A. W. . Perspectives on behavior settings: With illustrations from Allison’s ethnography of a Japanese hostess club. Environment and Behavior, 44, 474–492.
Wicker, A. W., & August, R. A.. Working lives in context: Engaging the views of participants and analysts. In W. B. Walsh, K. H. Craik, & R. H. Price. Person-environment psychology: New directions and perspectives. Hillsdale, NJ: Erlbaum.
Wicker, A. W., & King, J. C.. Life cycles of behavior settings. In J. E. E.McGrath, The social psychology of time.. Newbury Park, CA: Sage.
Articles in Social Psychology
Wicker, A. W.. Attitudes versus actions: The relationship of verbal and overt behavioral responses to attitude objects. Journal of Social Issues, 25, 41–78. Available online at http://www.thecre.com/tpsac/wp-content/uploads/2011/02/Appendix1_AttitudevsAction_ByWicker1969.pdf
Wicker, A. W.. Getting out of our conceptual ruts: Strategies for expanding conceptual frameworks. American Psychologist, 40, 1094–1103. Available online at http://www.internal.psychology.illinois.edu/~broberts/Wicker,%201985.pdf