Answer:
Convenience sampling
Explanation:
In convenience sampling, the samples for the research is drawn from the population that is very easily accessible by the researchers rather than using a specific criteria.
From the description above we can see that the internet site use only its members as the samples. Since the data of the site's members is easily accessible for the site, we can consider it as convenience sampling.
The defensive phenomenon is known as the "healthy paranoia." Healthy paranoia, as defined by Counseling Psychology is "a healthy, normative, and adaptive response to racism perceived by the Black Americans." In this way, it could be advantages to other people because it helps us being motivated and survive.
The Transcontinental Railroad innovation had the GREATEST impact on westward migration immediately after the American Civil War.
After the Civil War, there was great interest and opportunity with westward expansion. With the invention of the railroad, the transport of goods and people became quicker and less expensive than ever before.
Civil-Political, Socio-economic, Collective Developmental
