But, even the following causes error: undefined method `key=' for 
#<Question:0x007fcba5972f20>

before_validation :capitalize_first_words

    def capitalize_first_words
      [:question, :correct_ans_1, :correct_ans_2].each do|key|
          self.key = "x"
      end
    end

key is still not being interpreted  as "question" or  "correct_ans_1", 
ect...
Could it be a scope issue?  I am in the Question model.

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