Saturday, September 05, 2009

How 136 people became 7mil illegal file sharers

programmica.info via Reddit.


The Radio 4 show More or Less - which is devoted to the "often abused but ever ubiquitous world of numbers" - decided to examine the Government's claim that 7m people in Britain are engaged in illegal file sharing...

Fudged figures
As if the Government taking official statistics directly from partisan sources wasn't bad enough, the BBC reporter Oliver Hawkins also found that the figures were based on some highly questionable assumptions.

The 7m figure had actually been rounded up from an actual figure of 6.7m. That 6.7m was gleaned from a 2008 survey of 1,176 net-connected households, 11.6% of which admitted to having used file-sharing software - in other words, only 136 people.

It gets worse. That 11.6% of respondents who admitted to file sharing was adjusted upwards to 16.3% "to reflect the assumption that fewer people admit to file sharing than actually do it." The report's author told the BBC that the adjustment "wasn't just pulled out of thin air" but based on unspecified evidence.

The 6.7m figure was then calculated based on the estimated number of people with internet access in the UK. However, Jupiter research was working on the assumption that there were 40m people online in the UK in 2008, whereas the Government's own Office of National Statistics claimed there were only 33.9m people online during that year.

If the BPI-commissioned [BPI is British Phonographic Industry, the British record industry's trade association. Its membership comprises hundreds of music companies] Jupiter research had used the Government's online population figures, the total number of file sharers would be 5.6m. If the researchers hadn't adjusted their figures upwards, the total number of file sharers would be only 3.9m - or just over half the figure being bandied about by the Government.

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