Explain why researchers cannot claim causation when examining the relationship between variables.

It is necessary to repeat the experiment variating the variables to avoid the error of correlation that does not have anything to do with correlation but is a common mistake.

Because In order to claim causation, the researchers have to split the participants into different groups and assign them the behavior or the condition that they want to study (like testing a new drug or the effect of specific food) , while the rest don't

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Native americans, the aboriginals of australia, sub-saharan african cultures

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