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What type of correlation occurs when both variables increase in the same direction together?
Runner's High
A euphoric sensation reported by some individuals after prolonged running, attributed to the release of endorphins.
Endorphins
Natural, pain-relieving chemicals produced by the body that also contribute to feelings of pleasure and well-being.
Adoption Studies
Research studies that compare similarities between adopted children and their biological and adoptive parents to understand genetic and environmental influences.
Twin Studies
Research methods that compare identical and fraternal twins to assess the relative influence of genetics and environment on traits.
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