diff --git a/lib/typeform/api/response.rb b/lib/typeform/api/response.rb
index 8f27b92..5adb698 100644
--- a/lib/typeform/api/response.rb
+++ b/lib/typeform/api/response.rb
@@ -6,8 +6,8 @@ module Api
     class Response < Client
       class << self
         # retrieve reponses by a form_id
-        def retrieve_responses(form_id, page_size: 1000)
-          parse(JSON.parse(connection.get("forms/#{form_id}/responses?page_size=#{page_size}").body))
+        def retrieve_responses(form_id, response_type: 'completed', included_response_ids: '', page_size: 1000)
+          parse(JSON.parse(connection.get("forms/#{form_id}/responses?page_size=#{page_size}&response_type=#{response_type}&included_response_ids=#{included_response_ids}").body))
         end
       end
     end