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Hi, *I need to randomize a multidimensional array so that the order of questions in a questionnaire is different for each participant. I have limited php skills, and am modifying an old script someone else wrote. Currently, questions are presented in the same order that they are listed in the … |
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Hi, I am very new to php but I have been using it to do small web-based experiments (surveys) that have several alternative versions. I need to get an equal number of respondents for each version of the survey. So far what I've been using is a randomization variable for … |