Wednesday, March 28, 2012

The influence of free encyclopedias on science

Since its launch in 2001 Wikipedia has seen incredible growth worldwide, counting more than 21 million articles published in around 280 languages (including nearly 4 million articles in English) in 2012 (1). Wikipedia has grown in size (number of Wikipedia entries/articles have been increasing over time) and is showing high reliability: a recent study (2) of historical entries found 80% accuracy for Wikipedia, compared to 95-96% for other sources. This means that for the entries checked in the study, Wikipedia contain on average only about 15% more errors than other sources including traditionally perceived authoritative sources such as Encyclopaedia Britannica. The research found that this difference was negligible. Adding to this Wikipedia’s ease of access and wide coverage of topics explains why for many people it has become the first port of call for instant general knowledge on a variety of subjects.

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