Can SurveyGizmo calculate the standard deviation for each question on my survey? I am only able to see the option to calculate the standard deviation for the whole survey in the reporting tab.
Yes, the Standard Report can calculate the Standard Deviation for each (compatible question) provided that you have numeric reporting values:
The Standard Deviation option in the overall options actually should do what you want – it does not turn on the Standard Deviation for the whole survey, but rather enables the Standard Deviation to be shown on each question in the report.
Hope that helps clarify!