def train_question(self, question_set):
		data_vector, data_scores = self.preprocess_data(question_set, has_score=True)
		# test_kfold(data_vector, data_scores, 5)
		model = regr.train_model(data_vector, data_scores)
		return model
	def train_choices(self, question_set):
		choice_vector, choice_scores = self.preprocess_data(question_set, has_score=True)
		model = regr.train_model(choice_vector, choice_scores)
		return model