Joshua Knobe, Paul Bloom, and I have just written a short empirical piece using the 'side-effect effect' as a measure of 'implicit' moral judgments, entitled 'College students implicitly judge interracial sex and gay sex to be morally wrong.' In short, we demonstrate that while inidividuals explicitly report that certain acts are morally permissible (gay kissing and interracial sex), they still report these acts as more intentional.
Any comments would be welcome! Any errors of the analytical or otherwise philosophical sort should be directed solely to Joshua Knobe. Paul Bloom should receive complaints about psychological matters or quantitative errors. Which leaves me alone to respond to any positive comments.
And thanks to Thomas for granting access to a social psychologist...