1. Allen, I. L. (1966), "Detecting Respondents Who Fake and Confuse Information about Question Areas on Surveys," Journal of Applied Psychology, 50 (December), 523–528.
2. Bigelow, C. L. (1948), "Elements of Confusion in Newspaper Readership Study," Journal of Marketing, 12 (3), 337–347.
3. Bishop, G. F., R. W. Oldendick, A. J. Tuchfarber, and S. E. Bennett (1980), "Pseudo-Opinions on Public Affairs," Public Opinion Quarterly, 44 (Spring), 198–209.
4. Clancy, K. J., L. E. Ostlund, and G. A. Wyner (1979), "False Reporting of Magazine Readership," Journal of Advertising Research, 19 (October), 23–30.
5. Converse, P. E. (1970), "Attitudes and Non-Attitudes: Continuation of a Dialogue." In Quantitative Analysis of Social Problems, Edward R. Tufte (ed). Reading, MA: Addison-Wesley.