I would guess C, but it seems like it could change based on what type of relationship it is.
Answer:
consistency
Explanation:
According to my research on different research methods and terminology, I can say that based on the information provided within the question the criterion being described is called consistency. This is basically the fact that something keeps on repeating itself regardless of the different amount of varieties that it is exposed to. This is what researchers hope to achieve when making and testing an experiment.
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figure out your main points
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ABSOLUTELY. Discoveries come from mistakes. Think about it. If the inventor of a fridge didn't find out that his/her food spoiled, would we have a fridge? No, probably not. Mistakes cause discoveries, and we learn from mistakes.