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Correlation and Causation

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What Is Correlation? Correlation and Causation. Examples of Correlation/Causation Confusion. Murder rates affect IQ tests scores: study. By Maggie Fox, Health and Science Editor WASHINGTON Mon Jun 14, 2010 5:36pm EDT WASHINGTON (Reuters) - A murder in the neighborhood can significantly knock down a child's score on an IQ test, even if the child did not directly witness the killing or know the victim, U.S. researchers reported on Monday.

Murder rates affect IQ tests scores: study

The findings have implications both for crime control efforts and for the heavy reliance on standardized tests, said New York University sociology professor Patrick Sharkey, who conducted the study. They can also explain about half the achievement gap between blacks and whites on such tests, he reported in the Proceedings of the National Academy of Sciences. "It means being more aware of the potential for violence to have a reach that extends beyond just those victimized and those who witness a violent event, to reach across a community and affect all children in a community," Sharkey said in a telephone interview.

The effects wear off after a week to nine days, Sharkey found. Straight A's in High School May Mean Better Health Later in Life. Happiness wards off heart disease, study suggests. Being happy and staying positive may help ward off heart disease, a study suggests.

Happiness wards off heart disease, study suggests

US researchers monitored the health of 1,700 people over 10 years, finding the most anxious and depressed were at the highest risk of the disease. They could not categorically prove happiness was protective, but said people should try to enjoy themselves. But experts suggested the findings may be of limited use as an individual's approach to life was often ingrained. At the start of the study, which was published in the European Heart Journal, participants were assessed for emotions ranging from hostility and anxiousness to joy, enthusiasm and contentment. They were given a rating on a five-point scale to score their level of positive emotions. By the end of the analysis, some 145 had developed heart disease - fewer than one in 10. But for each rise in the happiness scale there was a 22% lower risk of developing heart disease.

It is not the first study to suggest there is a link between happiness and health. Correlation or Causation. Why you should talk to your baby Study suggests Southern slavery turns White people into Republicans 150 years later actual study here Early language skills reduce preschool tantrums, study finds This is your brain on exercise Brain scans of hoarders reveal why they never de-clutter Teenage sex "leads to bad moods" in later life Dogs walked by men are more aggressive Studies show exercise reduces dementia risk Actual studies here and here Religious experiences shrink part of the brain The coffee hour that's best for blood sugar Prevent Alzheimer's?

Correlation or Causation

Straight A's in high school may mean better health later in life Eating brown rice to cut diabetes risk Murder rates affect IQ tests scores: Study Want a higher G.P.A.? Sincere smiling promotes longevity Happiness wards off heart disease, study suggests Interactive animations give science students a boost OMG! Cards "can support mentally ill" Building more latrines: Peer pressure better than financial assistance Sugar rush... to prison?

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