A researcher was able to prove that, on average as age increases eyesight declines In research terminology this is called a (n) ?
Correct answer: A. correlation
- A. correlation
- B. variation
- C. observation
- D. measure of central tendency
- E. spurious relationship
Explanation
When two variables change together, such as increasing age and declining eyesight, their association is called a correlation. This observation alone does not establish that age is the only cause of the decline.
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