How do I hate p-values? Let me count the ways…

[Note: a long post of interest only to people who care about data analysis and bad statistics, and maybe about the distant stars influencing your life.] By now, we should all be able to list the many reasons that p-values (or null-hypothesis-significance-testing, NHST) are awful: that “statistical significance” has nothing to do with effect size … Continue reading How do I hate p-values? Let me count the ways…

If I keep writing, maybe this post will become significant

   There’s been an flurry of papers and essays in the past few years on scientific studies being wrong, arguing that the number of incorrect conclusions is disturbingly large, and symptomatic of poor practice, misplaced incentives, and other factors. Perhaps the most widely seen views on this theme graced the cover of The Economist a … Continue reading If I keep writing, maybe this post will become significant

Statistics!

At a café not long ago, I overheard some students sitting by me complaining that their error analysis exercise for a physics lab class was  extremely boring (involving e.g. propagation of errors in measurements). Usually, when I hear griping about classes I have to restrain myself from throwing coffee cups, but in this case I … Continue reading Statistics!