On Halloween night 1938, Orson Welles broadcast a radio adaptation of the H. G. Wells fantasy, The War of the Worlds. What listeners heard sounded so realistic that at least a million were frightened by word that "strange creatures" from Mars had landed in central New Jersey and were "unleashing a deadly assault." Several thousand were so terrified they ran into the streets, drove away in their cars, or called the police for information about how to escape. Why did so many panic when the circumstances reported were so improbable? That is just the question Hadley Cantril, then a young social psychologist, set out to answer.

Originally published in 1940, The Invasion from Mars remains a classic. The broadcast provided a unique real-life opportunity to explore why the relatively new medium of radio could have such an effect. Using a mix of research methods, Cantril shows that the impact of the broadcast had less to do with what went out over the air than with the "standards of judgment" people did or did not use in evaluating what they were hearing. This book is of continuing value to those interested in communications and mass behavior.


Gauging Public Opinion

by Hadley Cantril

Published 21 January 1944
This book furnishes the first systematic examination of the highly important and widely misunderstood new methods of surveying public opinion. The studies reported were done by Princeton's Office of Public Opinion Research under the direction of Hadley Cantril, one of the leading social psychologists in the country. The book pioneers in stimulating fashion some of the many problems involved in the determination of public opinion by modern techniques. Originally published in 1944. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.