A scientist is conducting an experiment on the learning ability of chimpanzees. Which of these situations would lead to the least reproducible data?

Studying only one chimpanzee gives a very small sample, so the results may reflect that individual’s abilities rather than chimpanzees in general. Repeating the study across many animals would make the findings more likely to be consistent, so studying one chimpanzee for several days would lead to the least reproducible data.

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