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Viral Study That Says You Are More Likely to Be a Psychopath if You Drink Black Coffee Is Bunk
http://www.slate.com/blogs/browbeat/2015/10/14/is_taking_your_coffee_black_a_sign_of_psychopathy_no.html?wpsrc=sh_all_dt_tw_top"...The authors of the study, which has been accepted for publication in the journal Appetite, surveyed a total of 953 people recruited on Amazons Mechanical Turk platform about how much they like specific foods (including coffee); how much they like bitter, sweet, sour, and salty foods in general; and how much they agreed with a total of 52 statements from various personality tests. They found that people who said they liked bitter foods in general were very, very slightly more likely to have traits associated with psychopathy, narcissism, sadism, and Machiavellianism. However, there was no correlation between people liking specific bitter foods (e.g., coffee) and having these dark traits. How could that be?
Apparently, no one can agree on what constitutes a bitter food. When the researchers asked participants to assess the flavors of specific foods, they found that participants disagreed with the researchers over whether certain foods were bitter. The researchers thought cottage cheese, ginger ale, grapefruit juice, rye bread, and tea were bitter; participants did not. Whoops! Perhaps this explains why there was a less-than-50-percent correlation between participants saying they liked bitter foods in general and saying they liked the specific bitter foods on the list.
You might think that the lack of consensus over what bitter means would send the authors back to the drawing board to design a better study. Instead, the authors forged ahead, ignoring the fact that the majority of relationships between taste preferences and personality traits were statistically insignificant. Even the strongest correlation touted by the study is pretty weak: The researchers found that liking bitter foods is predictive ofat the very best19 percent of someones sadism. There was a much stronger correlation between saying you like bitter foods and saying you like sour foods than there was between saying you like bitter foods and having any particular personality trait.
We should also consider the possibility that the participants didnt take the study very seriously. (And why should they? In accordance with Mechanical Turks ridiculously low rates, they were paid only $0.60 to $1 for their participation.) Self-reporting is notoriously unreliable, and the study included a bunch of personality-test questions that I, personally, would have no idea how to answer. For instance, participants were asked to rate this statement on a scale from 1 (extremely uncharacteristic of me) to 5 (extremely characteristic of me): I often find myself disagreeing with people. What constitutes disagreement? What constitutes often? Does people include Donald Trump or just people I actually know and hang out with? If I were being paid $0.60 to answer 52 maddeningly vague questions like this, Id probably just mark a number arbitrarily and move on as quickly as possible.
..."
No one should be surprised.
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Viral Study That Says You Are More Likely to Be a Psychopath if You Drink Black Coffee Is Bunk (Original Post)
HuckleB
Oct 2015
OP
frazzled
(18,402 posts)1. "It's not the coffee, it's the bunk!"
Dick Powell's famous slogan in an advertising contest for a coffee company. "If you can't sleep at night, it's not the coffee, it's the bunk!"
mike_c
(36,281 posts)2. no no no-- I'm a psychopath UNTIL I drink black coffee....
eom