Radio button default state in a questionnaire

asp.netasp.net-mvcinputuser-interface

I am writing a questionnaire in ASP .NET MVC. The format of the questionnaire is one yes/no question per page. The questionnaire is a safety questionnaire where, for the majority of the time the user will answer no to the questions. Should I set the default state of the radio buttons to 'no' to save the majority of the users time (enhancing the user experience) or should I leave them both as unselected so as not to potentially skew the results as a result of users' laziness?

Thanks

Best Solution

Since it is a survey, I'd would not set the default state and make all of the questions required (validating on submit and displaying an error message for skipped questions). That way you are forcing the user to make a decision and not skewing the results.

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The Radio Button itself doesn't recognize values(in terms of state) other than True/False. So you will have to compare the value with the actual position and explicitly set the TRUE /FALSE state.

Try with this overload of the radio button helper.

<%=Html.RadioButton("SurveyAnswer[" + questionIndex + "].AnswerValue", "0", q.AnswerValue == 0)%>
<%=Html.RadioButton("SurveyAnswer[" + questionIndex + "].AnswerValue", "1", q.AnswerValue == 1)%>
<%=Html.RadioButton("SurveyAnswer[" + questionIndex + "].AnswerValue", "2", q.AnswerValue == 2)%>
<%=Html.RadioButton("SurveyAnswer[" + questionIndex + "].AnswerValue", "3", q.AnswerValue == 3)%>
<%=Html.RadioButton("SurveyAnswer[" + questionIndex + "].AnswerValue", "4", q.AnswerValue == 4)%>

If you are using a ViewModel, maybe it's better to put this logic question (q.AnswerValue == 4) in there instead of directly in the view.

PS: I think you can remove the last parameter as the first already sets the ID and name atributes to : "SurveyAnswer[" + questionIndex + "].AnswerValue"

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