Nearly everyone has experienced a group project setting where they have been overly attached to their own ideas and contributions despite apparent dissatisfaction from partners or teachers. Why is it that we are so attached to our projects and ideas and have such difficultly with criticism? Named after the Swedish furniture giant, This phenomenon is called the " IKEA effect ." The IKEA effect describes how people are more likely to value something if they put time and effort into it. For example, someone may be more hesitant to donate a piece of furniture that they built on their own compared to a piece of furniture that was installed for them. This idea piggybacks off of the sunk cost fallacy , a cognitive bias that describes the tendency for people to fully commit to something if they have spent time and money on it. These two biases often work together to influence decision making. Another key mechanism behind the IKEA effect is the end...