The Northern economy benefited from development in many of its industries, including textile and iron production. The war also stimulated the growth of railroads, improving transportation infrastructure.
Answer:
cross-sectional
Explanation:
Cross-sectional studies are used to measure the exposure and outcome of a population or study group at a specific point of time. It is used in different fields including developmental psychology, social science, and education, based on the interest area of research. It is an observational method of research because researcher cannot manipulate the variables in this type of research.
This technique is known as Foot-in-the-door phenomenon.
Foot-in-the-door phenomenon is a way of having a person to furnish or follow a big request with the aid of using to begin with making small or modest requests.
The approach is primarily based totally at the good judgment that if a respondent (the individual being requested) can furnish an preliminary small or modest request, then the respondent might be maximum probable to later furnish a bigger request that he/she (the respondent) might now no longer have granted if requested outright (with out being approached with small requests first).
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