Briefly explain one significant contribution of either scientific management or regulatory commissions to the progressive movement

The Progressive Movement was a combo of a variety of ideas and activities of reformist groups, it lasted from 1890 to 1920 and covered social reform issues such as female suffrage, education, working conditions, unionization, urbanization, industrialization and child labor. Political reforms were also included, they fought corruption, bribery and the regulation of Big Business and corporations. The first regulatory commissions were established, they created licenses for professionals like pharmacists, veterinarians, and undertakers.

the answer would be 50's sitcoms reinforced traditional roles for men and women.