Semi-random assignment to conditions

Online experiments
10

  1. You need to set group in the expInfo dialogue box so it can receive the value of group sent my the study portal. Then use expInfo[‘group’] (which will be a string variable of ‘1’ to ‘8’ if you set 8 groups) to define the spreadsheet, e.g. conditionsFile = ‘group’+expInfo[‘group’]+’.xlsx’

  2. It doesn’t. You have to tell PsychoPy what to do with each value of group.

  3. The Study Portal will attempt to assign equal numbers to each group. I haven’t added a stopping condition at this stage.

  4. Yes, that would be the easiest way to do it. In the PI sheet you could add a link to the other PI sheet for people reading it of the wrong gender. A link in Markdown is created using [Duck Duck Go](https://duckduckgo.com).

The video and this thread are the only documentation other than that you can see on the app itself.