By Thomas M. O’Toole, Ph.D.
The “law of least effort” is an important principle for understanding jury decision-making. In short, if there are several ways of making sense of the evidence and testimony in a case, jurors will gravitate towards the one that is the least demanding for their brains. As Nobel-winning psychology Daniel Kahneman (who has spent his life studying human decision-making) states, “Laziness is built deep into our nature.”
In fact, research has consistently shown that we assign greater weight to information and ideas that are more easily accessible to us, regardless of whether that information or those ideas are accurate and reliable. It may be because the information or idea is familiar, easier to understand, makes more intuitive sense, or ties to something that is easier for our brain to access. Continue reading