Researchers who are unfamiliar with the cultural and ethnic groups they are studying must take extra precautions to shed any biases they bring with them from their own culture.

不熟悉所研究的文化和种族群体的研究人员必须采取额外预防措施，以摆脱他们从自己的文化带来的任何偏见。

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For example, they must make sure they construct measures that are meaningful for each of the cultural or ethnic minority groups being studied.

例如，他们必须确保他们制定的措施对每一个被研究的文化或少数民族群体都是有意义的。

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Different cultural features of ethnic groups are in tune with one another and work out a melody.

各民族不同的文化特征相互协调，谱成一首旋律。

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"Culturally, food means something very different to us than it does to other ethnic cultural groups, " said Smikle.

NPR: 'Minding Your Money,' Part 1

Many epidemiologists have argued that, if there is a relationship, it is not a matter of the removal of the foreskin but of the sexual behaviour of the cultural, ethnic or religious groups that are either circumcised or not circumcised.

ECONOMIST: To snip or not to snip?

Concerns have been expressed that there could be a bias within ethnic groups towards selecting boy children, for cultural reasons.

BBC: Many parents 'would choose baby's sex'