Civil War was caused by sectionalism.
American Indians are the most impoverished racial group in the country. Not surprisingly, if you compare Indian communities to other impoverished areas in the United States, you’ll see similarities in terms of single motherhood, teen pregnancy, drug use, and violence.
I believe the answer is: 4. They require a large sample size.
The data required in a longintudinal study is taken by examining the sample population for a long period of time, as they develop over the years. The amount of population in such studies is usually really small, but the amount of time needed for start to finish is the one that become the main problem among researchers
I believe the answer is: Evocative correlation
Evocative correlation refers to a situation when the action or behaviours that initiated by people evoke an environmental or societal response. On babies, many experts perceive see evocative correlation that initiated by babies is a form of communication method that babies used to voice up their discomfort, since they cannot use verbal language yet.