Edwards, A.L. (1957). Techniques of attitude scale construction. New York: Appleton-Century-Crofts.
2.
Fishbein, M., & Ajzen, I. (1975). Belief, attitude, intention, and behavior: An introduction to theory and research. Reading MA: Addison-Wesley.
3.
Ostrom, T.M. (1981). Theoretical perspectives in the analysis of cognitive responses. In R. Petty, T. Ostrom, & T. Brock (Eds.), Cognitive responses in persuasion (pp. 283-290). Hillsdale NJ: Erlbaum.
4.
Ostrom, T.M. (in press). Bipolar survey items: An information processing perspective . In H. J. Hippler, N. Schwarz, & S. Sudman (Eds.), Social information processing and survey methodology. New York: Springer Verlag.