Dear Liam,
That 'well accepted' study is entirely counter to what I know to be the
case with creative problem solving in Japanese groups - which radically
outperforms any Japanese individual's performance - in a set time-frame,
especially a short one - I'm willing to bet the study was not conducted
cross-culturally - the fatal flaw of most such studies.
I'm not sure this helps (smile)
Cheers
Ben Williams