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What is the most accurate way to determine the surface temperature of a star?
Confound
A variable other than the one intended to be manipulated by the experimenter that may be responsible for the effect on the dependent variable, making alternative explanations possible.
Clowns
Entertainers who perform comical acts, using makeup and exaggerated expressions to amuse an audience; traditionally associated with circuses, parties, and theatrical performances.
Operational Definition
A specific, concrete method of measuring or manipulating a conceptual variable.
Ethical Issue
A situation that requires a person or organization to choose between alternatives that must be evaluated as right (ethical) or wrong (unethical).
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