I have just published R code for calculating CIs for differences between correlations on the Serious stats book blog. This covers independent correlations (taken from chapter 6 of the book) and dependent correlations (new R code written as a suppl...
This is a quick update to announce my new blog Serious Stats. This is a companion to my forthcoming book of the same name:Baguley, T. (2012, in press). Serious stats: A guide to advanced statistics for the behavioral sciences. Basingstoke: Palgrav...
A longer version of my earlier post A problem of significance just appeared in The Psychologist.Baguley, T. (2012). Can we be confident in our statistics? The Psychologist. 25, 128-9.Shortly after publication I received an email asking about statistica...
Psychologists are gradually coming round to the view that it is a good idea to present interval estimates alongside point estimates of statistics. The most common statistic reported in psychology research is almost certainly the me...
Several people have drawn my attention to a recent article on a common error in published statistical analyses in neuroscience. Sander Nieuwenhuis, Birte Forstmann and Eric-Jan Wagenmakers published (in Nature Neuroscience) a critique of statistical an...
Here are the slides from the Introduction to R session Danny Kaye and I ran at the BPS Mathematics, Statistics & Computing section CPS Workshop (13 December 2010, Nottingham Trent University).
I was recently asked to give a talk to our graduate school annual conference. I offered several titles and the one they picked was Using R in research. I'm not sure if this was a good idea or not. The graduate school covers PhD students across three ar...
A while ago I wrote a co-wrote chapter for an introductory psychology text book Essential Psychology: A Concise Introduction. This is a book edited and written by members of the department where I work. My contribution was the chapter on huma...
I needed to produce a few a interaction plots for my book in R and, while the interaction.plot() function is useful it has a couple of drawbacks. First, the default output isn't very pretty. Second, it works from the raw data, whereas I often need plot...
A while ago I promised a longer post on standardized effect size. This isn't it. Instead it is a link to my piece in the February 2010 issue of The Psychologist. I had intended to write a short summary of my 2009 BJP paper, but that didn't r...
