That was a surprisingly difficult article to obtain; Google Scholar failed, my UWash access as usual didn't work on Psycnet, a straight fulltext search failed, and when I finally found the journal in Ebscohost, the PDF download didn't work! After a while, I figured out that I could email the citation - with PDF attached - to myself. Here it is:

http://dl.dropbox.com/u/5317066/2012-stoet.pdf

EDIT: I had to laugh at this from the conclusion (or should that be cry?):

Third, we only included published studies. We believe that this is reasonable, because it is difficult to determine the scientific credibility of unpublished data. Furthermore, we do not think that a possible file drawer effect, which is the likelihood of missing articles that have not been published, would change our conclusion. More likely than not, unpublished studies would have found no differences between experimental conditions, although we can only speculate about this.