A danger of ethnocentric research is that it can help to create or reinforce stereotypes. EG The US Army used an IQ test before WWI which was culturally biased toward the dominant white majority. Unsurprisingly, the test showed that African-Americans were at the bottom of the IQ scale and this had a negative effect on the attitudes of Americans’ toward this group of people, which highlights the negative impact that ethnocentrically biased research can have.