Look what I found! ... I quote 'A new computer program can tell whether a book was written by a man or a woman. The simple scan of key words and syntax is around 80% accurate on both fiction and non-fiction.
The program's success seems to confirm the stereotypical perception of differences in male and female language use. Crudely put, men talk more about objects, and women more about relationships.
Female writers use more pronouns (I, you, she, their, myself), say the program's developers, Moshe Koppel of Bar-Ilan University in Ramat Gan, Israel, and colleagues. Males prefer words that identify or determine nouns (a, the, that) and words that quantify them (one, two, more).'
... end quote
(there was more on this)
So now all we have to do is to ask the computer!
Andrew

)
ps this was my reference but it is only available if you are signed up to the magazine web site 'Nature'
http://www.nature.com/nsu/030714/030714-13.html