What’s In A Name

I’ve mentioned the Wall Street Journal’s The Numbers Guy, who questions the conventional wisdom about statistical report before. Recently, he took on studies suggesting that major league baseball players with first or last initial K were more likely than average to strike out; and business graduate students with initials C or D had lower grades, on average, perhaps reflecting an unconscious affinity to the grades corresponding to their initials. Why IS that, and is that really what's going on?