The progressive movement was largely a reaction to: group of answer choices the passage of the reconstruction amendments after the end of the civil war. the hardships suffered by the working class caused by industrialization and urbanization. the greed and corruption that led to the stock market crash and the great depression. the end of the united states isolationist foreign policy during world war i.

The correct answer is the hardships suffered by the working class caused by industrialization and urbanization.

Explanation:  Progressive Movement refers to a set of philosophical, ethical, and economic doctrines based on the idea that progress, understood as scientific, technological, economic, and social advancement, is vital for the betterment of the human condition. This idea of progress integrates the Enlightenment ideology and has, as a corollary, the belief that societies can move from barbarism to civilization by strengthening the foundations of empirical knowledge.

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

i dont believe in religion. lets all be peace