In their 1993 history of TV Guide, Changing Channels: America in TV Guide, Cornell professors Glenn C. Altschuler and David I. Grossvogel have stated that "no writer...did more to shape TV Guide," a publication that reached over 40 million readers at the time. Her impact on the magazine, they said, included her role as "the quintessential TV Guide voice on race relations." All the positions she took on race in her articles, Efron is quoted as saying, "were determined by what I thought would be good for a young, vulnerable black child," a reflection of the issues which Efron herself had faced while bringing up a biracial son in the segregated America of the 1950s.[5]
In 1971, Efron published The News Twisters,[6] a controversial book which claimed to find media bias in the television news coverage of the 1968 U.S. presidential election, one of the first studies of its kind ever conducted. This was followed by her 1972 work, How CBS Tried to Kill a Book,[7] an examination of CBS News's reaction to her study.
She was a contributing editor to Reason magazine from the 1970s until her death in 2001, where she wrote psychological studies of former PresidentBill Clinton and Supreme Court Justice Clarence Thomas. The latter prompted Justice Thomas to declare that Efron had been the "only person" to understand what was going through his mind during the hearings that made him a household name, according to Reason editor Virginia Postrel.[8]
In 1984, Efron published The Apocalyptics,[9] described as "an exposé of shoddy science and its effects on environmental policy," which systematically examined the regulatory "science" behind the banning of chemicals in consumer products, debunking the alleged "cancer epidemic" claimed to exist by many in the media.
^McConnell, Scott "Al Ramrus" (2010). 100 Voices: an Oral History of Ayn Rand, New American Library, pp. 157–64, ISBN978-0451231307 (Ramrus worked with Efron on Wallace's staff).