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dc.contributor.authorAbdel-Hamid, Tarek
dc.contributor.authorAnkel, Felix
dc.contributor.authorBattle-Fisher, Michele
dc.contributor.authorGibson, Bryan
dc.contributor.authorGonzalez-Parra, Gilberto
dc.contributor.authorJalali, Mohammad
dc.contributor.authorKaipainen, Kirsikka
dc.contributor.authorKalupahana, Nishan
dc.contributor.authorKaranfil, Ozge
dc.contributor.authorMarathe, Achla
dc.contributor.authorMartinson, Brian
dc.contributor.authorMcKelvey, Karma
dc.contributor.authorSarbadhikari, Suptendra Nath
dc.contributor.authorPintauro, Stephen
dc.contributor.authorPoucheret, Patrick
dc.contributor.authorPronk, Nicolaas
dc.contributor.authorQian, Ying
dc.contributor.authorSazonov, Edward
dc.contributor.authorVan Oorschot, Kim
dc.contributor.authorVenkitasubramanian, Akshay
dc.contributor.authorMurphy, Philip
dc.dateJanuary-June 2014
dc.date.accessioned2014-11-04T18:25:49Z
dc.date.available2014-11-04T18:25:49Z
dc.date.issued2014
dc.identifier.citationSystem Dynamics Review, Vol 30, No 1-2, (January-June 2014): pp. 58–74
dc.identifier.urihttp://hdl.handle.net/10945/43633
dc.descriptionThe article of record as published may be located at http://dx.doi.org/10.1002/sdr.1517en_US
dc.description.abstractHuman body energy storage operates as a stock-and-flow system with inflow (food intake) and outflow (energy expenditure). In spite of the ubiquity of stock-and-flow structures, evidence suggests that human beings fail to understand stock accumulation and rates of change, a difficulty called the stock–flow failure. This study examines the influence of health care training and cultural background in overcoming stock–flow failure. A standardized protocol assessed lay people’s and health care professionals’ ability to apply stock-and-flow reasoning to infer the dynamics of weight gain/loss during the holiday season (621 subjects from seven countries). Our results indicate that both types of subjects exhibited systematic errors indicative of use of erroneous heuristics. Indeed 76% of lay subjects and 71% of health care professionals failed to understand the simple dynamic impact of energy intake and energy expenditure on body weight. Stock–flow failure was found across cultures and was not improved by professional health training. The problem of stock–flow failure as a transcultural global issue with education and policy implications is discussed.en_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.titlePublic and health professionals' misconceptions about the dynamics of body weight gain/lossen_US
dc.typeArticleen_US
dc.contributor.departmentInformation Sciences (IS)


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