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________ refers to whether the manipulation of the independent variables or treatments actually caused the observed effects on the dependent variables.
Remittances
Money sent by workers to people (usually family members) in their country of origin.
Illegal Immigrants
Individuals who enter or reside in a country without the required authorization or documents.
United States
A country consisting of 50 states and a federal district, recognized for its significant influence in global economics, politics, and culture.
Remittances
Money sent by individuals working abroad back to their home countries, contributing to the economy.
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