document: Using NetCloak to develop server-side Web-based experiments without writing CGI programs Server-side experiments use the Web server , rather than the participant 's browser , to handle tasks such as random assignment , eliminating inconsistencies with Java and other client-side applications . Heretofore , experimenters wishing to create server-side experiments have had to write programs to create common gateway interface -LRB- CGI -RRB- scripts in programming languages such as Perl and C++ . NetCloak uses simple , HTML-like commands to create CGIs . We used NetCloak to implement an experiment on probability estimation . Measurements of time on task and participants ' IP addresses assisted quality control . Without prior training , in less than 1 month , we were able to use NetCloak to design and create a Web-based experiment and to help graduate students create three Web-based experiments of their own
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