anchor.diff:                <td>
                   <label>
                     <input type="hidden" value="" :name="'multiple_choices_questionnaire[questions_attributes][' + qindex + '][answers_attributes][' + index + '][correct]'"/>
  -                  <input type="checkbox" v-model="answer.correct" :name="'multiple_choices_questionnaire[questions_attributes][' + qindex + '][answers_attributes][' + index + '][correct]'"/>
  +                  <input type="checkbox" v-model="answer.correct" :name="'multiple_choices_questionnaire[questions_attributes][' + qindex + '][answers_attributes][' + index + '][correct]'"
  +                    class="multiple_choices_questionnaire_question"/>
                     Correcta
                   </label>
                 </td>
  
positive.code:           }
        });
  
    </script>
  
  <% end %>
  
negative.code:           </div>
          </template>
        </div>
        <table class="question table-hover table-striped table" v-if="!question._destroy">
          <thead>
          <tr>
            <th>#</th>
  