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More than one hypothesis will tend to make the research question more general.For that reason, researchers should usually limit themselves to developing only one hypothesis.
Manipulates Factors
The adjustment or control of variables or conditions in a study or experiment to examine their effects on an outcome.
Research Method
A systematic approach to collecting data and performing scientific investigations to expand and refine knowledge in a particular field.
Random Sample
A subset of individuals chosen from a larger set, where each member has an equal chance of being selected to represent the whole.
Physical Attractiveness
How appealing or aesthetically pleasing a person's physical traits are perceived by others.
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