Professor Andy Field's Page

Someone posed me this question:

Some of my research, if not all of it (:-S) will use multiple correlations. I'm now only considering those correlations that are less than .001. However, having looked at bonferroni corrections today - testing 49 correlations require an alpha level of something lower than 0.001. So essentially meaning that correlations have to be significant at .000. Am I correct on this? The calculator that I am using from the…

This blog was published recently showing that the use of R continues to grow in academia. One of the graphs (Figure 1) showed citations (using google scholar) of different statistical packages in academic papers (to which I have added annotations).…

I’ve been thinking about writing a blog on one-tailed tests for a while. The reason is that one of the changes I’m making in my re-write of DSUS4 is to alter the way I talk about one-tailed tests. You might wonder why I would want to alter something like that – surely if it was good enough for the third edition then it’s good enough for the fourth? Textbook writing is quite an interesting process because when I wrote the first edition, I was very much younger, and to some extent the content…

Like buses, you don’t get a blog for weeks and then two come at once. I saw today this headline: Does listening to rock make you racist? Seven minutes of Bruce Springsteen makes students favour white people over others in the daily mail online. They also included a helpful picture of Scott Weiland wearing a…