diff --git a/app/models/subcategory.rb b/app/models/subcategory.rb
index ae4767db..9bbe7da0 100644
--- a/app/models/subcategory.rb
+++ b/app/models/subcategory.rb
@@ -26,8 +26,8 @@ class Subcategory < ActiveRecord::Base
   def create_response_rate(school:, academic_year:)
     student = StudentResponseRateCalculator.new(subcategory: self, school:, academic_year:)
     teacher = TeacherResponseRateCalculator.new(subcategory: self, school:, academic_year:)
-    ResponseRate.create(school:, academic_year:, subcategory: self, student_response_rate: student.rate,
-                        teacher_response_rate: teacher.rate, meets_student_threshold: student.meets_student_threshold?,
-                        meets_teacher_threshold: teacher.meets_teacher_threshold?)
+    ResponseRate.new(school:, academic_year:, subcategory: self, student_response_rate: student.rate,
+                     teacher_response_rate: teacher.rate, meets_student_threshold: student.meets_student_threshold?,
+                     meets_teacher_threshold: teacher.meets_teacher_threshold?)
   end
 end