def response_set
      extracted_sets = []

      unless self.qp_response_set.nil?
        self.qp_response_set.each do |set|   
          extracted_sets.push(ResponseSet.new(set))
        end           
      end

      return extracted_sets
    end
def response_set
      extracted_sets = []

      unless self.qp_response_set.nil?
        self.qp_response_set.each do |set|   
          extracted_sets.push(ResponseSet.new(set))
        end           
      end

      return extracted_sets
    end
Extract the Response Set from the hash stored
 inside qp_response_set attribute.

 @return [Array<QuestionproRails::ResponseSet>] Response Sets.