Industrial cities began to develop because of new technologies and ideas and in order for the factories to grow larger, they needed more workers so the the unemployed people had those opportunities to work there.
I believe the answer is: learning theory
Learning theories refers to the framework that explain how people obtained data/information, process it as a part of learning, and transform it into knowledge. In social settings, things such as emotion, congitive abiltiy, observation of other behaviours, and the influence of other peiople would be seen as crucial factors that affect people's learning rate.
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