A psychologist notes that there is a correlation between physical health and the number of vacations that a person takes. According to him, people who take more vacations tend to have better physical health. After thinking about this result, you realize that this association may be due to a third factor: income. People with more income can afford more vacations and can afford better health care. Your explanation for this is most consistent with which limitation of correlational research?

Question

Quizplus · Accepted Answer

The third variable problem refers to the possibility that an unobserved third variable is influencing both variables being studied, in this case, income affecting both vacation frequency and physical health.

A Psychologist Notes That There Is a Correlation Between Physical