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What is the role of endorphins?
Income
The amount of money received on a regular basis from work, property, business, or as financial support.
Positively Correlated
A relationship between two variables in which they both move in the same direction, meaning that as one variable increases, the other also increases.
Manipulates Factor
In experimental design, the variable that is changed or controlled by the researcher to observe its effect on the dependent variable.
Research Design
The framework or plan for a study used as a guide in collecting and analyzing data.
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