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The Invisible Hand Principle suggests that
External Validity
The extent to which the results of a study can be generalized or applied to other situations or to other people.
Internal Validity
The extent to which an experimental design accurately demonstrates a causal relationship between variables, without influence from external factors.
Causal Relationship
A causal relationship indicates a connection between two variables where changes in the value of one variable are known to cause changes in the value of another variable.
Demand Characteristics
Environmental cues in experiments that might influence participants' behavior or responses, potentially biasing the results.
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