I think you are referring to the famous Berlin and Kay study (here's a chapter detailing it: http://www.icsi.berkeley.edu/~kay/KBMM.ps http://www.icsi.berkeley.

I think you are referring to the famous Berlin and Kay study (here's a chapter detailing it: http://www.icsi.berkeley.edu/~kay/KBMM.ps http://www.icsi.berkeley.edu/~kay/KBMM.ps).