Decision making and over-thinking
Some research has been promulgated to challenge the idea that the more information we have, the better the choice we make. While it is true that information helps making better decisions, too much information may however, lead us to make decisions that are not based on critical thinking.
Past research has been conducted on how consumers make decisions when presented with a wide variety of choices, versus a limited number of choices. Other studies have included test-tasting a product, such as breakfast jam. When told beforehand that a certain brand of jam has received the highest ratings based on a consumer report, subjects often allow this information to influence their choice of product.
This science fair project will be a modification of the jam experiment - in that you will be testing three groups of participants. The first group will have to make a product selection based solely on their preferences. The second group will be offered an expert opinion before they make their selection, and the third group will be treated the same as the second group, only that they will have to justify their final decision.