.row
  .col-md-6
    %legend Question
    .form-group
      = f.label :title, 'Your Question'
      = f.text_field :title, class: 'form-control'
    .form-group
      = f.select :question_type_id, QuestionType.all.pluck(:title, :id), {}, { class: 'form-control' }
    .checkbox
      %label
        = f.check_box :global
        Make Global
      %span.help-block
        Global questions are available for selection to all conferences
  .col-md-6.hidden{id: 'answers_col'}
    = dynamic_association :answers, 'Answers', f,
                          hint: 'Insert your answers in the order you want them to appear'

:javascript
  $("#question_question_type_id").change(function () {

    var selected_type = $(this).find('option:selected').text();

    if (selected_type == 'Yes/No')
      $('#answers_col').addClass('hidden');
    else
      $('#answers_col').removeClass('hidden');
    end
  });