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A researcher places participants into a scent-free room and releases a small amount of mint oil into the air. The researcher is trying to determine, for each participant, the smallest amount of mint oil that each participant can detect in the air, 50 percent of the time. The research is trying to determine__________

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Answer:

Determine the odour detection threshold of the research subjects

Explanation:

The research is trying to determine the odour detection threshold of the research subjects

Odour detection threshold is the lowest level of an odorous compound that can be perceived by the human sense of smell.

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