Answer:
random assignment
Explanation:
Random assignment is an experimental technique that seeks to form random and fully randomized experimental groups in relation to the treatments presented in the research. This type of technique prevents the formation of "combined groups" that show the differences to each other and can generate a comprehensive result on the research, thus the random formation of diverse groups that can represent a much larger and different population.
An example of this can be seen in the question above, where the researcher decides the formation of the group that will receive the medicine and the group that will receive the placebo, completely randomly.
Answer:
The Mississipi Indians were easily defeated by DeSoto because they were infected with diseases that had no biological defenses.
Explanation:
When Hernando deSoto and his groups arrived in Mississippi, they began to get involved with local cultures and infect them with diseases (such as smallpox and measles) that the Indians had no biological defense against. This caused a large number of deaths within the native tribes of Mississippi causing a severe collapse in the social structures of the tribes and allowing them to be extremely weakened and easily fought.
Answer:
Farm life. They had a difficult time in the 1800s and 1900's. They had to use wireless (I'm sure it is, I forgot) fences to hold cattle. They had to make better shelter on storms and take care of their animals. This was a challenge to them.
- Hope I helped!
