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What is the connection between correlation and causation

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Essay Question

A researcher has investigated the relationship between IQ and grade point average (GPA) and found the correlation to be .75.
For this essay, critique the results and interpretation of a correlational study.

• Evaluate the correlational result and identify the strength of the correlation.

• Examine the assumptions and limitations of the possible connection between the researcher's chosen variables.

• Identify and describe other statistical tests that could be used to study this relationship.

Your essay response must address the following questions:

• How strong is this correlation?

o Is this a positive or negative correlation?

o What does this correlation mean?

• Does this correlation imply that individuals with high Intelligence Quotients (IQ) have high Grade Point Averages (GPA)?

• Does this correlation provide evidence that high IQ causes GPA to go higher?

o What other variables might be influencing this relationship?

• What is the connection between correlation and causation?

• What are some of the factors that affect the size of this correlation?

• Is correlation a good test for predicting GPA?

If not, what statistical tests should a researcher use, and why?

Reference no: EM13855751

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