• Buy_from_a_friendDownload .TXT file Open in Data Desk ?Link
  • Methods: Comparing Groups, Test for Difference between Two Groups
  • Source: J. J. Halpern, “The Transaction Index: A Method for Standardizing Comparisons of Transaction Characteristics Across Different Contexts,” Group Decision and Negotiation, 6: 557–572, 1997
  • Number of Cases: 8
  • Story:

    A researcher at Cornell University wanted to know how friendship might affect simple sales such as this. She randomly divided subjects into two groups and gave each group descriptions of items they might want to buy. One group was told to imagine buying from a friend whom they expected to see again. The other group was told to imagine buying from a stranger. The data are the prices offered by the experiment participants.


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