The Hypodermic Needle Theory, popular in the 1930s, suggested that audiences passively absorb intended messages from media like a hypodermic needle injecting a drug. It was influenced by studies like the Payne Fund Studies from 1929-1932 which examined movies' effects on children and found potential for profound influence. However, the theory has been disproven and shown to ignore audience interpretation and opinions. Orson Welles' 1938 "War of the Worlds" radio broadcast provided an example where many listeners believed the fictional news reports of a Martian invasion, showing passive audience effects. But media influence is now understood as more complex.