_form.html.erb

<%= simple_form_for([:admin, @housemate]) do |f| %>
  <%= f.input :first_name %>
  <%= f.input :last_name %>
  <%= f.input :screen_name %>
  <%= f.input :address %>
  <%= f.input :talent %>
  <%= f.input :rate, as: :select, collection: ['QT', 'Pabebe', 'Meh'] %>
  <%= f.submit %>
<% end %>