Participants were asked to choose between two potential options for a blind date, bot of which had good and bad qualities
Asked to retrospectively recall attributes, they assigned more positive qualities to the date they chose
We tend to overemphasise the positive attributes or benefits of choices we’ve previously made
See the full study here :
Mather, M., Shafir, E., & Johnson, M. K. (2000). Misremembrance of options past: Source monitoring and choice. Psychological Science, 11(2), 132-138, https://doi.org/10.1111/1467-9280.00228