Auto-checked Yes/No with condition.

Hi Shuang,

Here is a working code :

First, add an embedded with your conditions to verify survey completion :
The value of the embedded data have to correspond with your yes/no question options

In my example, the validation question choices are 1 for "Yes" and 2 for "No"

So my embedded data will be set like that

Once you have your embedded data set, you can add this javascript code to your question
Qualtrics.SurveyEngine.addOnload(function()
{
/*Place your JavaScript here to run when the page loads*/
});


Qualtrics.SurveyEngine.addOnReady(function()
{
var complete = "${e://Field/complete}";
this.setChoiceValue(complete, true)
});


Qualtrics.SurveyEngine.addOnUnload(function()
{
/*Place your JavaScript here to run when the page is unloaded*/
});

Et voilà !