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  1. Rationality in medical treatment decisions : is there a sunk-cost effect ?

    Article - En anglais


    To assess residents'propensity to display the sunk-cost effect, an irrational decision-making bias, in medical treatment decisions ; and to compare residents'and undergraduates'susceptibility to the bias in non-medical, everyday behaviors.


    Cross-sectional, in-person survey.


    Louisiana State University, two locations : Medical Center-Baton Rouge and Main Campus-Psychology Department.


    Internal medicine and family practice residents (N=36, Mdn age=27) and college undergraduates (N=40, Mdn age=20).

    Measurements and main results 

    Residents evaluated medical and non-medical situations that varied the amount of previous investment and whether the present decision maker was the same or different from the person who had made the initial investment.

    They rated reasons both for continuing the initial decision (e.g., stay with the medication already in use) and for switching to a new alternative (e.g., a different medication).

    There were two main findings 

    First, the residents'ratings of whether to continue or switch medical treatments were not influenced by the amount of the initial investment (p's>0.05).

    Second, residents'reasoning was more normative in medical than in non-medical situations, in which it paralleled that of undergraduates (p's<0.05). (...)

    Mots-clés Pascal : Etats Unis, Amérique du Nord, Amérique, Homme, Médecin, Résident, Pratique professionnelle, Etude transversale, Prise décision, Traitement, Education, Lieu travail, Vie quotidienne, Questionnaire

    Mots-clés Pascal anglais : United States, North America, America, Human, Physician, Resident, Professional practice, Cross sectional study, Decision making, Treatment, Education, Work place, Daily living, Questionnaire

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 99-0392499

    Code Inist : 002B30A05. Création : 22/03/2000.