Setting the value of a question from elsewhere

Question

I am setting up a survey which embeds the respondents previously provided birth year. With this, I want to be able to answer a question on behalf of the respondent, which converts that embedded birth year into an approximate age, and assigns that age to a single-response question with age buckets (e.g. 18-24, 25-34, and so on), which a quota logic is tied to. I can achieve that with something like this:var year = '${e://Field/Birth%20Year}'; var today = new Date(); var age = null; if (year > 0) { age = today.getFullYear() - year - 1; } var q1 = null; if (age >=18 && age<=24) { q1 = 1; } else if (age>=25 && age<=34) { q1 = 2; } else if (age>=35 && age<=44) { q1 = 3; } else if (age>=45 && age<=54) { q1 = 4; } else if (age>=55 && age<=64) { q1 = 5; } else if (age>=65) { q1 = 6; } if (q1!=null) { this.setChoiceValueByRecodeValue(q1,true); } this.clickNextButton();However, I do not want the respondent to see the question at all. I don’t want it to appear for a second pre-answered, and then go to the next page, which is what this current solution does. If I use “Display logic” in the Editor to hide the question from the respondent, the javascript instructions will not execute, and the question remains unanswered. So, how can I set the questions value remotely, as in, from the javascript code of another question? I haven’t been able to find the right way to refer to the question id and set its value remotely. I’ve tried things like:var q1 = '${q://QID1/}'; (and a few different sub-properties I was able to find like /QuestionText)q1.setChoiceValueByRecodeValue(1,true); but this doesn’t do anything. Appreciate any help! :)

L_J · Answer

Probably too late to help Robert, but for anyone coming across this with the same issue:This won’t set the responses from another question, but thisquestionID.hide will allow the question to be populated from the JS within the Q without the respondent seeing it.Qualtrics.SurveyEngine.addOnload(function(){ jQuery("#"+this.questionId).hide(); jQuery("#Buttons").hide();// COMMENT: your code to set the question value and write it to the question would most of the time all go here //});...this snippet of code hides the question and the forward/ next buttonThen add the below:Qualtrics.SurveyEngine.addOnReady(function(){ jQuery('#NextButton').click();});...This auto advances to the next question once your JS is executed.It’s not perfect: if you put several of these in questions back to back you’ll get a bit of “flickering” without showing the question while each (blank) page loads then advances, so avoid that if possible - it just looks weird!, but unless your respondent has a VERY slow browser they won’t experience any disruption on their side while this executes on a single question.

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