A Fair Comparison of the Randomized Response Strategies
随机化策略的公平比较

There have been many alternative randomized response strategies for implementing survey on sensitive question so far. And most of these strategies have improved survey efficiency by choosing approprite design parameters. However, two different procedures with common design parameter values are of different protection degree to the respondents. Some earlier comparisons of those strategies are unfair because those comparisons do not provide the same degree of protection to the respondents in the two models. In this paper, the authors compare exactly the efficiency of some earlier strategies under same protection degree to respondents. The obtained results show that these earlier randomized response strategies must be reevaluated.