I think it's The Economist's visualization that is confusing, not the data. I read the paper, they have 292 subjects. Here's the Tukey plot (which to me, is les

I think it's The Economist's visualization that is confusing, not the data. I read the paper, they have 292 subjects. Here's the Tukey plot (which to me, is less confusing than the scatter plot) from the paper on age in low and high self-control groups: http://imgur.com/ijL6nrp http://imgur.com/ijL6nrp Also, according to the authors, 'skin-deep' metrics improved: http://imgur.com/lXD3f2L http://imgur.com/lXD3f2L