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| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| Betteridge's law of headlines | 1/2 | https://en.wikipedia.org/wiki/Betteridge's_law_of_headlines | reference | science, encyclopedia | 2026-05-05T10:07:20.500979+00:00 | kb-cron |
Betteridge's law of headlines is an adage that states: "Any headline that ends in a question mark can be answered by the word no." It is based on the assumption that if the publishers were confident that the answer was yes, they would have presented it as an assertion; by presenting it as a question, they are not accountable for whether it is correct or not. The law is named after Ian Betteridge, a British technology journalist who wrote about it in 2009. The maxim has been cited by other names since 1991, when a published compilation of Murphy's law variants called it "Davis's law", a name that also appears online without any explanation of who Davis was. It has also been referred to as the "journalistic principle" and in 2007 was referred to in commentary as "an old truism among journalists".
== History == Betteridge's name became associated with the concept after he discussed it in a February 2009 article, which examined a previous TechCrunch article that carried the headline "Did Last.fm Just Hand Over User Listening Data to the RIAA?":
This story is a great demonstration of my maxim that any headline which ends in a question mark can be answered by the word "no". The reason why journalists use that style of headline is that they know the story is probably bullshit, and don't actually have the sources and facts to back it up, but still want to run it. A similar observation was made by British newspaper editor Andrew Marr in his 2004 book My Trade, among Marr's suggestions for how a reader should interpret newspaper articles:
If the headline asks a question, try answering 'no'. Is This the True Face of Britain's Young? (Sensible reader: No.) Have We Found the Cure for AIDS? (No; or you wouldn't have put the question mark in.) Does This Map Provide the Key for Peace? (Probably not.) A headline with a question mark at the end means, in the vast majority of cases, that the story is tendentious or over-sold. It is often a scare story, or an attempt to elevate some run-of-the-mill piece of reporting into a national controversy and, preferably, a national panic. To a busy journalist hunting for real information a question mark means 'don't bother reading this bit'.
== Studies == A 2016 study of a sample of academic journals (not news publications) that set out to test Betteridge's law and Hinchliffe's rule (see below) found that few titles were posed as questions and of those that were questions, few were yes/no questions and they were more often answered "yes" in the body of the article rather than "no". A 2018 study of 2,585 articles in four academic journals in the field of ecology similarly found that very few titles were posed as questions at all, with 1.82 percent being wh-questions and 2.15 percent being yes/no questions. Of the yes/no questions, 44 percent were answered "yes", 34 percent "maybe", and only 22 percent were answered "no". In 2015, a study of 26,000 articles from 13 news sites on the World Wide Web, conducted by a data scientist and published on his blog, found that the majority (54 percent) were yes/no questions, which divided into 20 percent "yes" answers, 17 percent "no" answers and 16 percent whose answers he could not determine.