Hi there,
My experiment is conducted online and I need to generate tokens that they then use as logins to access the experiment. This is so that I am able to identify which participants have completed the study so I can give them course credit. All the subject numbers need to be unique for this reason. I get that I can use a number of methods to generate subject numbers once I upload. First question: is there any way of making these tokens single use only to prevent them attempting the experiment again/quitting the experiment and restarting? If not, I'm assuming I could use date/time to identify the first time participants did the experiment.
I also need to counterbalance the block order of three blocks of trials. I understand that I can use the /subjects = (1 of 3) attribute (2 of 3, 3 of 3) to do this. I'm a bit confused as to how the roughly even assignment of subjects to these groups works, so am unsure of what else needs to included in the script for this to work. It's my understanding from http://ron.dotsch.org/inquisit-tutorial/ that it's linked to the subject numbers. Cheers,Renee