For a topic like this, I might not lump in "doctoral or professional degree." I imagine medical doctors, lawyers, people with PhDs in the liberal arts, PhDs in the sciences, and PhDs in engineering disciplines might all have materially different work/stress/productivity profiles.
Similarly you could separate "Engineering/CS" into two choices. Mechanical engineers and software "engineers" don't really do the same kind of work.
I am both a consultant and an employee, so I wouldn't know how to answer "what is your current role" unambiguously.
I would add some questions about commute time. Definitely an important factor when assessing stress and work satisfaction.
In September, doing a big survey on work, stress, and productivity -- going to gather a bunch of possibly germane data, and then see what correlations stand out.
Current version is around 90% complete here --
[done]
Any feedback? Any data you'd be very interested in getting? We're basically guaranteed to get basic statistical significance / sample size, and might have respondents in the mid-thousands if things break right. What would you like to know? Feedback? Thanks.
Edit 7 September: it's now live here -- https://form.jotform.com/71974198606368 -- I answered a few of the top questions and read all the rest and incorporated some of the feedback. Thanks so much.