Key points are not available for this paper at this time.
Robert L. Widner, Jr., Steven M. Smith, William G. Graziano, The Effects of Demand Characteristics on the Reporting of Tip-of-the-Tongue and Feeling-of-Knowing States, The American Journal of Psychology, Vol. 109, No. 4 (Winter, 1996), pp. 525-538
Widner et al. (Mon,) studied this question.