Political Science Deneme Sınavı Sorusu #978023

In which of the following decades was modern-day opinion polling developed?


1910s

1920s

1930s

1940s

1950s


Yanıt Açıklaması:

George Gallup, Archibald Crossley and Elmo Roper developed modern-day opinion polling in the early 1930s.

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