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Discussion Board 2 – Research
Discussion Board 2 – Research
The Studies
Brain injury and aggression
One study found that soldiers from the Vietnam War who had an injury to the front part of their brains (the frontal lobe) were more aggressive than war veterans who didn’t have an injury to that part of the brain.
Violent TV and Crime
Studies have shown that the more violent TV a child watches when they’re younger, the more likely they are to commit a crime when they’re adults.
TV and Attention
For every one hour on average that a three-year-old watches, they are 10% more likely to have attentional problems when they’re aged seven. So a three-year-old child that watches four hours of TV on average, is 40% more likely to have attentional problems than a three-year-old child that watches one
Fish and depression
At least one study has shown that the more fish consumed on average per person in a country, the lower the rate of depression. Japan has very low rates of depression, for instance, when compared to countries that eat less fish like New Zealand.
Meditation and brain development
People who meditate for longer have more developed prefrontal cortices (the parts of the brain that help us concentrate).
Candy and Crime
One study carried out in the UK found that children who ate candy every day were more likely to commit crimes when they were older.
In this discussion, explain why you think any of these studies would be a good study or not. Can you prove causation in any of the studies? If you think it is not a good study, how would you improve it? Why do we have to be careful when reading research in the news? Can you recall any correlations reported recently in the news? (Hint: a common example correlates some variables with various aspects of health). Was the correlation positive or negative? What are the various possible causal relationships related to this correlation? What can you conclude about reading research that is NOT in a peer-reviewed scientific journal?