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Suggestions for further reading

Our course is not a traditional introduction to statistics. Traditional courses focus on the mastery of techniques while the present one is all about not getting fooled by numbers. The …

Assymetrical Errors

This video clip summarizes a great article by David Hemenway which has two main points: Survey-based estimates of defensive uses of guns must be too high because they don’t square …

On the Cutting Edge

The methods that Chris and I discuss in this clip are another promising direction for the survey and polling industry. They constitute a serious response to at least two of …

Potential Pitfalls for Election Prediction

This interview nicely complements my video from step 2.14, but with an exclusive focus on election prediction. Here’s my summary of the key points, which mix together both old and …

Potential Pitfalls

Think back to steps 2.12 and 2.13 about error margins. Notice that none of the pitfalls covered in the video are even mentioned in these steps on error margins. Error …

Measuring Personal Income

Professor Melanie Luhrmann (promoted from Dr. Luhrmann after we filmed the clip!) introduces yet another important idea into our measurement discussion. Melanie is a Professor at Royal Holloway, University of …

The Idea of a Survey

After I recorded this video a veritable volcano blew its stack on social media in a way that is highly relevant to my last point about knowing exact wordings of …

Polling Successes and Failures

Professor Chris Hanretty introduces three new concepts/ideas that will become increasingly important for us as the week unfolds. Chris Hanretty is a Professor of Politics at Royal Holloway, University of …

Domestic Abuse

I was genuinely astonished by an effect that Professor Dan Anderberg mentioned at the beginning of this interview; leaving women alone to answer questions about domestic abuse triples the reported …

The Gender Pay Gap – Part 1

You can set up a bunch of on-camera interviews but you can’t predict exactly what will come out the other end. One pleasant surprise for me was the discovery of …

Faking it

Visit this Padlet to view another graph which employs the truncated x-axis trick. But this manoeuvre is trivial compared to a much more serious manipulation; the picture fakes one of …

Relative Risks versus Changes in Absolute Risks

Here are some sample calculations that, hopefully, help you to understand relative and absolute risks better. We can extract the following pieces of information from this nice little article. 2.9 …

Playing With Percentages

Here are some examples of the sorts of calculations mentioned in the video. Percentage change The general form of these calculations is: ((NewValue – BaseValue) / BaseValue) x 100 For …
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