The study conducted was done to investigate the effect of prior information given to an individual on taste. We took 2 flavors of jellybeans, Peach or Juicy Pear, and either told the participants the flavor or had written down “mystery” so that they did not know the true flavor. Participants (N=38) were randomly assigned to the conditions. They were given a sheet of paper with a label as either the true flavor or mystery, were told to read the paper then eat the jellybean and rate it on a scale from 1-5. We found that peach was rated less than juicy pear. In addition, we found that jellybeans that were labeled as their true flavor had slightly lower rating than jellybeans than those labeled as mystery. The results suggested that knowing the flavor before eating it does not always result in a higher rating, opposite of what we had initially thought.
Cafferata, Cyla, "Expectation and Taste within Jellybeans" (2019). Psychology Student Research. 4.