What have studies of non-human primates revealed about the researchers themselves?

A. That researcher perspectives may affect the nature of the data gathered.
B. That researchers have political agendas and rarely let the field data speak for itself.
C. That researchers are only looking for new and exciting discoveries.
D. That researchers are biased and compete to have their data recognized.

Non-human primate studies have shown that researchers can introduce bias into their work due to various factors like cultural backgrounds, personal experiences, and education.

Explanation:

Studies of non-human primates have revealed that researchers themselves can introduce bias into their work, impacting the data gathered. This bias can stem from factors such as researchers' cultural backgrounds, personal experiences, and education. It is crucial for researchers to be aware of their biases and transparent about them to ensure the validity of their research.

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