I am trying to have respondents rank the services provided by two different software vendors. I would like to have four different services ranked 1-5 by company, so I will need two grids side-by-side in a single question. I don’t see an option for adding another layer of labeling to the radio button table. If radio buttons are not the best option for this type of question, please let me know what you would recommend.
There’s not any way to create two layers in a basic radio button question per se, however you could create a custom table that has two radio button questions side by side http://help.surveygizmo.com/help/article/link/custom-table from what you’re describing this sounds like it would be the best option for you.