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Research Randomizer is a free service offered to students and researchers interested in conducting random assignment and random sampling. By using this service, you agree to abide by the SPN User Policy and to hold Research Randomizer and its staff harmless in the event that you experience a problem with the program or its results. Although every effort has been made to develop a useful means of generating random numbers, Research Randomizer and its staff do not guarantee the quality or randomness of numbers generated. Any use to which these numbers are put remains the sole responsibility of the user who generated them.
What are the system requirements needed to run Research Randomizer?
All that Research Randomizer requires is a regular web browser connected to the Internet (e.g., Firefox, Safari, Chrome, Internet Explorer) -- no specialized software, plugins, or extensions.
How does Research Randomizer generate its numbers?
Research Randomizer uses the "Math.random" method within the JavaScript programming language to generate its random numbers for all modern web browsers. If you're using a very old version of Microsoft Internet Explorer or Netscape Navigator (that is, prior to version 4.0 of either), Research Randomizer uses an adaptation of the Central Randomizer by Paul Houle.
Who designed Research Randomizer?
The original idea and programming for Research Randomizer came from Geoffrey C. Urbaniak in 1997. Research Randomizer was then jointly developed with Scott Plous, webmaster of Social Psychology Network, and online tutorials were added to the main program. In 2007, Scott Plous and web developer Mike Lestik redesigned the site and added new content.
Has Research Randomizer received any honors?
Yes, Research Randomizer has received a number of honors, including these:
What is the format for citing Research Randomizer?
If you wish to cite Research Randomizer (e.g., in a research report or student paper), here is an example of the suggested format:
Urbaniak, G. C., & Plous, S. (2011). Research Randomizer (Version 3.0) [Computer software]. Retrieved on April 22, 2011, from http://www.randomizer.org/
How can I contact the developers of Research Randomizer?
If you experience any problems with Research Randomizer, or if you have questions, comments, or suggestions about the program, please contact Geoffrey C. Urbaniak.
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