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This web site is designed to assist researchers and students who want an easy way to perform random sampling or assign participants to experimental conditions. Research Randomizer can be used in a wide variety of situations, including psychological experimentation, medical trials, and survey research. The program uses a JavaScript random number generator to produce customized sets of random numbers. The current version, v2.1, improves on previous versions of RR by adding faster sorting capabilities as well as the ability to sort numbers from greatest to least, if preferred. 

Note: If you are an America Online user or are using an old version of Netscape Navigator or Internet Explorer (3.0 or earlier), please see the system requirements discussed in About Research Randomizer.

If you have any questions, comments, or suggestions for improvements, we'd love to hear from you. Please email us

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