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Psychologists use the experimental method to determine if changes in one variable lead to changes in another. Learn more about methods for experiments in psychology.| Verywell Mind
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Reciprocity is a social norm that involves making mutually beneficial exchanges with other people. Learn why reciprocity plays an important role in relationships.| Verywell Mind
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Many in psychology believe there are five primary personality traits. Learn about the "Big 5" personality traits, as well as what it means to be high or low in each.| Verywell Mind