In an experiment on the effects of alcohol on memory, participants are first tested after drinking a nonalcoholic beverage and then tested again after drinking an alcoholic beverage. This is an example of a design. Group of answer choices

Aresearcher proposes to conduct a study at a foreign site. the research has been determined to be exempt from the federal regulations by institutional policy. according to federal regulations, is review required at the foreign site? if a proposed study qualifies for exemption, federal regulations do not require review at the foreign site where it will be conducted but still require review at the u.s. site by the institution’s irb. if a proposed study qualifies for exemption, federal regulations do not require review at the foreign site where it will be conducted. if a proposed study qualifies for exemption, federal regulations do require review at the foreign site where it will be conducted. if a proposed study qualifies for exemption, federal regulations do not require review at the foreign site where it will be conducted, but still require review by the institutional official at the local site.

How were the economies of the northern and southern states different? how ere they the same? what factors led them to develop differently?

In 1866, a mob in which tennessee city attacked local african americans and burned down homes and schools?