The site that I am working on, a design guideline is already set that we don't use radio buttons as a selection tool, but always use buttons for such a choice. For example, "Are you a member of this site?" instead of radio buttons with 'next' button for a step process, we're using buttons:
[myself] [a family member] [former member] etc.
The designer proposed putting "a" in the "family member" button and I can't seem to back up my reasoning and it's grammatically more correct, I think it should be just "family member". I looked at the WILTIWLT test and it seems little irrelevant for my case. Any opinions?
I looked at Microsoft guidelines and they speak about keeping the length of the options similar. In that argument, I feel like "family member" is more similar format to "myself" although it's less grammatically correct.