Abstract
Within the two factor model of Lopes (1987), and considering that subjects can be classified according to their attitudes towards risk, we focused our work in analysing why some subjects do not change their preferences towards risk after receiving outcome feedback. We developed our work using as experimental task, choices between lotteries, used in previous researches (Le., Lopes and Schneider, 1987; León and Lopes, 1988). We hypothesized that the self fulfilling prophesy can explain the maintenance of preferences of risk seeking and risk averse subjects, regardless of experimental manipulation. Our data support our hypothesis for both groups of subjects. It seems as if people "treat" the information derived from feedback in a manner making them maintain their previous strategies in choosing the different lotteries. In consequence, outcome feedback is not always a relevant variable for subjects for changing their behavior in risky choice.
