The central assumption of the dual control model (Bancroft & Janssen, 2000) is that sexual arousal and response result from a balance between inhibitory and excitatory mechanisms of the central nervous system. The Sexual Inhibition/Sexual Excitation Scales (SIS/SES; Janssen, Vorst, Finn & Bancroft, 2002) consist of 45 items and feature one Sexual Excitation factor (SES) and two inhibition-related ... [Show full abstract] factors: one relevant to the threat of performance failure (SIS1) and one relevant to the threat of performance consequences (SIS2). The SIS/SES has been found to be relevant to the prediction of various aspects of sexual response and behavior (for a review, see Bancroft, Graham, Janssen, & Sanders, 2009). Several studies have reported gender differences in SIS/SES scores. Women tend to score higher on sexual inhibition and lower on sexual excitation compared with men, and not all SIS/SES items may be equally relevant to men’s and women’s arousal (Carpenter, Janssen, Graham, Vorst & Wicherts, 2008). The SIS/SES-Short Form (SIS/SES-SF) was designed by selecting items that represent the three-factor structure equally well for women and men.