Millions of U.S. men, up before draft examiners in World War I and II, had their hearing tested by one simple method. The tester stood them against a wall, backed away 20 feet, started speaking in a low conversational tone, walked toward them, asked them to indicate when they could hear what he was saying. Does this testwhich the Army, the Navy and the Veterans Administration still useprove anything? No, says Dr. Aram Glorig, director of aural rehabilitation at the Army Medical Center in Washington.
Dr. Glorig became suspicious of the test, made 173 experiments with it in a special "speech tunnel"...
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