1-Recognize ex of decision past or present which was once considered "rational" but that is now reviewed as "irrational". Do not examine personal decision but one from published or academic source.
2-Describe , in detail, why decision was once considered "rational" but would now be considered "irrational".
3-Recognize decision theory you think was utilized in original decision making in your ex. You may choose from expected utility theory, regret theory, prospect theory, pseudocertainty, satisficing, or noncompensatory strategies. Ensure to completely support "why" theory you selected was present. Simply naming theory will not be sufficient.