No Gender Differences in Enrollment for Replicated, Minimally-Different 'Pornographic' Versus 'Photographic' Studies.

Objective: Since women tend to use pornography less, they may enroll less in studies concerning it and/or those who do may be gender-atypical. Methods: One study plus replication, assessed proportion of participants reporting being women, responding to each of two, minimally different (one including the word "pornographic") study advertisement versions, and their pornography use frequency, Erotophilia-Erotophobia, and Openness to Experience. Results: Proportion responding to each version did not differ. In one sample only, women responding to one version differed in Openness to Experience. Conclusions: Advertising to North American convenience samples using the word "pornographic", may produce neither self-selection out by, nor over-sampling of gender-atypical, women.