white bean exp

• when was it

  1932
• who was it by

  jenness
• what does it support

  ISI
• meathod

  -glass bottle filled with 811 white beans

  -individual estimate

  -allowed to discuss with a group and produce a group estimate

  -final individual estimate
• findings


  nearly all participants changed their original estimate to be closer to the group estimate
• explanation for findings


  -likely to be the result of ISI

  -wanted to be right and believed that the group estimate was closer to being right than their own