Key points are not available for this paper at this time.
Testing Mixed-Strategy Equilibria When Players Are Heterogeneous: The Case of Penalty Kicks in Soccer by P.-A. Chiappori, S. Levitt and T. Groseclose. Published in volume 92, issue 4, pages 1138-1151 of American Economic Review, September 2002
Chiappori et al. (Thu,) studied this question.