Question
In: Psychology
The "Journal of American pediatrics" reports a correlational link between watching TV watching and obesity. Does...
The "Journal of American pediatrics" reports a correlational link between watching TV watching and obesity. Does this link mean there is a casual relation between TV watching and obesity? What alternative explanations can you think of?
Solutions
Expert Solution
A correlation between two variable suggests the manner in which
the dependent variable is affected with a change in the independent
variable. There is said to be a positive correlation between the
two variables is increase in one variable also leads to the
increase in the other variable. Also, there is said to be a
negative correlation when increase in one variable leads to the
decrease of another variable.
Now one of the disadvantages or consequences of using a
correlational study is that correlation does not imply causation
and sometimes you may find significant correlation between things
that are not related at all. For example, the correlation between
the age of Miss America and the number of films Nicholas Cage
appeared in that year is 87%. This is a text-book example of
spurious correlation.
Therefore, just because the study suggests a correlation between
watching TV and obesity does not mean that one is causing the
other. It is also possible that a third variable like the amount of
exercise that a person does is more related to the variables that
are concerned.
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Hayet Jeridi answered 7 months agoRelated Solutions
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