如果在网站开发过程中你一直在做迭代(重复)的可用性测试，就会有许多用户参加其中一个或另一个版本的网站测试。
If you do iterative (repeated) usability testing over the course of developing the Web site, many users will participate in testing one or another version of the emerging site.
通过添加一个循环，您可以为一系列的迭代重复您的测试的任何一部分。
By adding a loop, you can repeat any part of your test for a set number of iterations.
如果你觉得这增加了估算的准确性，那就在更多的迭代中重复这一过程。
Repeat the process for a couple more iterations if you feel this will increase the accuracy of the estimate.
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