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It can be used to misrepresent data if the researcher is biased and only handpicks his population to be studied so that the outcome will prove his hypothesis. In 2016 a professor Noakes at University of Capetown challenged the hypothesis that low fat, high carb diets are linked to lower risk of heart disease. He claims that heart disease is caused by carbohydrates which turn to sugar. He claims that the study done by Ancel Keys in 1960 was biased by his own belief and the 7 countries picked for the research data did not include Germany, France, and Switzerland where much meat and fat is consumed daily (The Magic Pill, 2017).