The Monty Hall Dilemma Donald Granberg

  title={The Monty Hall Dilemma Donald Granberg},
  author={Thad A. Brown},
  journal={Personality and Social Psychology Bulletin},
  pages={711 - 723}
  • Thad A. Brown
  • Published 1 July 1995
  • Psychology
  • Personality and Social Psychology Bulletin
The Monty Hall Dilemma (MHD) uses two-stage decisions with a host, guest, and a prize behind one of three doors. After the guest makes a choice, the host reveals another door as incorrect. The dilemma is whether to stick with the initial hunch or switch to the remaining alternative. The correct but counterintuitive solution is to switch. In the first encounter, only 12% switch. Across trials, switching increases to 55%. Altering the reward structure affects switching. The symmetrical… 
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