I didn't know there was a new study. Thanks for linking to it. It looks like there's a meta-study too: http://www.eis.mdx.ac.uk/research/PhDArea/saeed/SD_PPIG_

I didn't know there was a new study. Thanks for linking to it. It looks like there's a meta-study too: http://www.eis.mdx.ac.uk/research/PhDArea/saeed/SD_PPIG_2009.pdf http://www.eis.mdx.ac.uk/research/PhDArea/saeed/SD_PPIG_2009...