© iStockphoto.com/Alexander Shirokov

"Number hygiene for journalists" is the provocative title of a post on Getstats, a project of the UK Royal Statistical Society. The original Word document is posted in a more accessible form here. A sample: "The wording of a question can hugely influence the answer you get ... What the public understands may not match the survey researcher's idea." Comment here and an interview with the director.