Unfortunately finding a contrary result is a career limiting move. Consider Robert Putnam, who suppressed his research (showing that diversity harms social cohesion) for 6 years while trying to &quot;develop proposals to compensate for the negative effects of diversity&quot;.<p><a href="http:&#x2F;&#x2F;onlinelibrary.wiley.com&#x2F;doi&#x2F;10.1111&#x2F;j.1467-9477.2007.00176.x&#x2F;abstract" rel="nofollow">http:&#x2F;&#x2F;onlinelibrary.wiley.com&#x2F;doi&#x2F;10.1111&#x2F;j.1467-9477.2007....</a>