>dr. b,
>i looked at that article the first day you posted it, but
>now i seem to have lost the link. moreover, i am not sure
>to which 'ctk exchange' category this thread belongs.

At the bottom of every messay there's a line with links to Previous topic and Next topic. It's the Next one.

You can also search the CTK Exchange for, say, "Gender Differences".

The article is at the Early Math forum.

>although amy seems to have lost interest anyway, for future
>reference how can i quickly find the ctk exchange category
>to which a recent thread linked from the front page belongs?

You can press Read new icon (top row on every page of the CTK Exchange), which will display a list of posts that appeared after you pressed Mark all the last time.