The inside story of how an Ivy League food scientist turned shoddy data into viral studies
This Buzzfeed story follows allegations that a Cornell researcher published studies obtained through the scientifically dubious method of ‘p-hacking’.
'P-hacking' refers to sifting through all combinations of variables in a dataset to find one with a strong correlation (which may happen by chance, given enough data). This goes against the generally accepted scientific method, where researchers should state their hypothesis in advance of carrying out the study rather than retrospectively finding a story in the data. Affected studies include research about eating habits at a buffet, investigations into whether children can be encouraged to eat apples by decorating them with stickers, and whether people eat more when they have been thinking about exercise.
North America is the northern subcontinent of the Americas covering about 16.5% of the Earth's land area. This large continent has a range of climates spanning Greenland’s permanent ice sheet and the dry deserts of Arizona. Both Canada and the USA are major food producers and some of the largest food exporters in the world. Industrial farms are the norm in North America, with high yields relative to other regions and only 2% of the population involved in agriculture.