\label{Authoring_Surveys}
\index{surveys}

Surveys are created by authoring a conventional problem, such as a Radio button or Option problem.
During the authoring process, you will need to select one of the foils as "correct". Which 
foil is set to "correct" will not matter, however;
that setting will be ignored when you implement the survey.

Within the course environment, to add a survey to the course, insert the published "problem", and
then set the parameter for "Question Type" to "Survey", "Survey with Credit", or "Anonymous Survey".
To evaluate the survey, you will perform analysis using the Detailed Problem Analysis.

The results examined in problem analysis will be displayed sorted by foil name, so take some care to
name the foils. For example "Foil10" appears before "Foil2" alphabetically, so your survey may easier
to interpret if you insert a zero before single digits, such as "Foil02" and "Foil10" which will
sort as expected.