I believe, the change in perspective actually led those people to try and abolish slavery.
Back then, most people believe that nothing wrong with slavery and view it as something normal that just happen in society. (which is also essential for plantation's operation)
But overtime, they started to see how the slaves were suffering and struggling for their freedom to the point that they started to understand the slaves' feeling and willing to join the fight for their freedom.
Answer:
The research method that would be able to answer the research question of Irving woould be
a Correlational Research.
Explanation:
The reason behind this is the objective of each research method. In the first place, naturalistic observation would require him to observe every study participant while he is under the influence of alcohol. In the second place, the case study would require him also to follow the events of every participant or to retrieve cases associated with it. But that would be a biased study because we wouldn't be able to measure the variables quantitatively. Archival research would be good, but he would depend on previous results that might be too old to be considered good, and they might not measure the two variables. However, if we develop correlational research we would be able to measure the two variables in real-time.
The need to feed and care for young children in prehistoric society led to many homeless people