چكيده به لاتين
The matter of choice in the self-determination theory is an outcome of autonomy, that is a basic need as it has been recognized for human beings, and when it has been provided people mostly experience positive emotions, satisfaction, pleasure, motivation, interest and desire to do some deeds. On the other hand, the lack of choice is harmful to individuals but this matter never has been empirically studied in operations management. Waiting-time is also an indispensable part of service organizations, the reduction of which has effects on customer satisfaction. Most of the time, reduction of the actual waiting-time is not cost-effective due to operational constraints and therefore high costs, so it is better to improve people's perception of waiting in our way. In this study, to watch the effect of the choice on precepting the waiting-time, a laboratory study was conducted with three experimental groups and about 100 participants. In the first group, people were given the ability to go to the next picture after a few seconds of watching an advertisement, while they were in a waiting-time for the main course. On the other side, the other two groups, did not have this choice to go to the next picture and they had to stay on. The difference between these two latter groups was that the people in the third group knew that the first group had the ability to pass on the images. We predicted that in the first group, people would perceive less waiting-time duration and enjoy their activities while they were in waiting-time more than the other two groups. The experiment showed the manipulation of choice had effects and the differences between average-timeperception in different groups were in line with the research hypotheses, but these differences were not statistically significant, so the research hypotheses were not confirmed in this study and probably needed to increase the number of samples. Also, the number of people in the first group underestimating the waiting-time, compared to the other two groups, was higher, in spite of the comparison of other two groups which turned out to have the same number of people, which was in line with the research hypotheses.