Analyses of mental contamination: Part I, experimental manipulations of morality.

The fear of contamination is thought to be comprised of two separate but related fears: those pertaining to physical and mental contamination. Previous research on mental contamination involved studies in which more than one independent variable was manipulated simultaneously. In particular, an immoral act (e.g., a non-consensual kiss) had been coupled with an immoral man (e.g., the person who forces the kiss) in each manipulation. The purpose of this study was to separate manipulations of the immorality of the man from the immorality of the act. Female undergraduate students (n=148) listened to an audio recording and imagined that they were experiencing either sharing a consensual kiss with a man described as moral or immoral, or receiving a forced, non-consensual kiss from a man described as moral or immoral. Participants indicated the presence and degree of mental contamination and then completed a behavioural task for which spontaneous washing was recorded. Results indicated that a non-consensual kiss evoked greater feelings of mental contamination than a consensual kiss. In particular, participants who imagined a non-consensual kiss from a man described as either moral or immoral reported the greatest feelings of mental contamination, whereas participants who imagined a consensual kiss from a man described as moral reported the least. Results are discussed in terms of cognitive-behavioural conceptualizations of and treatments for contamination fears.