It is essential to have longitudinal study to support the causal relationship.
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Related: causal
Prev: But Schweitzer contends the "mounting causal evidence" linking goal-setting and harmful behavior should be studied to help spotlight issues that merit caution and further investigation.
Next: There was no causal relationship between the Yunnan and Qinghai quakes, but they shared the same root cause, Sun Shihong, a researcher at the China Earthquake Networks Center, said.
