Holy WordPress! I just finally stumbled across the plugin, that I might have been lookin' for all that time. Anyone tried "PHPmyadahas" WordPress questionaire/survey plugin?
http://adahas.com/work/phpmyadahas/
Amazingly, it offers all this, according to the README (which comes with the download but is not printed on the blog for some reason):
-------FROM THE README-------------
Question / Answer Type
There are five types, of which four are categorized by the nature of the answers for those types of questions, and the other is a container/grouping for several sub-questions. Following are descriptions of each of those.
Text Answer: Single line - will allow the user to specify the answer for the question by a typing a single line of text.
Text Answer: Multiple lines - will allow the user to specify the answer for the question by a typing a several lines/paragraph of text.
Selection Answer: Single selection - will allow the user to specify the answer by selecting one of the pre-defined answers. You also have the option to allow the user to specify the answer by typing a single line of text, in case if the answer differs from the pre-defined set of answers.
Selection Answer: Multiple selection - will allow the user to specify the answer by selecting one/more of the pre-defined answers. You also have the option to allow the user to specify the answer by typing a single line of text, in case if there is any different from the pre-defined set of answers.
Container Question - will allow you to group a set of questions and display them under this type of question. This may be used when several related questions are used, or to display a comment above a set of questions. A 'Container Question' assumes that questions followed by it are its sub-questions up to the limit specified by the 'No of sub-questions'
Even though these are described as they are, you can do different things to make it look the way you want it to, so be creative!
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It was released in 2005 and the author's blog appears inactive, but I got the zip. Has anyone tried this plugin with WordPress 2.x?