skill-assessment-app/app/views/quiz/_checkbox_other.html.erb

<%
  answers = question.answer.nil? ? [] : Array(question.answer['options'])
  other_value = question.answer.nil? ? '' : question.answer['other']

  question.input_options.each do | option |
    option_id = "#{option.parameterize}_#{question.to_i}"
    checkbox_html = {class: "", id: option_id, data: { last: answers.include?(option) ? 'checked' : '' } }
    %>
      <div class="">
        <%= check_box_tag('answer[answer_hash][options][]', option, answers.include?(option), checkbox_html) %>
        <%= label_tag(option_id, option) %>
      </div>
    <%
  end %>

  <div class="">
    <%
      option_id = "other_#{question.to_i}"
      checkbox_html = {class: "", id: option_id, data: { last: answers.include?('other') ? 'checked' : '' } }
      text_html = {class: "", id: "text_#{option_id}", data: { last: other_value }}
    %>
    <%= check_box_tag('answer[answer_hash][options][]', 'other', answers.include?('other'), checkbox_html) %>
    <%= label_tag(option_id, 'Other') %>
    <%= text_field_tag 'answer[answer_hash][other]', other_value, text_html %>
  </div>

<%= render partial: "quiz/answer_errors", locals: {question: question, answer: answer} %>