> I would expect that most often it is unhyphenated as a noun -- an African
> American -- where the first directly modifies the second, and hyphenated as
> an adjective -- African-American culture -- where the two together form the
> compound adjective.
I am in the preparatory stages of working on a book to be published by a
national black organization. It contains eight essays by different authors. In
some, African American is used both as a noun and as an adjective; in others,
it's African-American as both noun and adjective.
That's what I am talking about.