A researcher has investigated the relationship between IQ an

A researcher has investigated the relationship between IQ and grade point average (GPA) and found the correlation to be .75. Does this correlation provide evidence that high IQ causes GPA to go higher?

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

Solution

IQ and GPA have a positive correlation of 0.75

As the correlation is positive and 0.75, it gives idea that higher IQ influences to 75% of GPA.

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The remaining 25% can be attributed to the interest in the subject, time available, resources available for preparation, health conditions, natural calamities, etc.