The prevalence of rape in South Africa has reached epidemic proportions. The experience of shame in a rape victim may impact on issues such as disclosure and avoidance (which increases posttraumatic stress severity (PSS)). It is also known that other cognitive vulnerabilities such as anxiety sensitivity, rumination, looming cognitive style, and attribution style impacts the severity of traumatic stress. These vulnerabilities overlap with the experience of shame conceptually. It remains unclear whether shame has a direct relationship with severity or whether it influences other dynamics that eventually contributes to increases in (PSS). 37 female adult rape survivors from a local NGO completed a biographical questionnaire and a variety of quantitative measures of shame (Experience of Shame Scale (ESS)), PSS (Harvard Trauma Questionnaire – Revised (HTQ-R)), anxiety sensitivity (Anxiety Sensitivity Index – 3(ASI-3)), rumination (Perseverative Thinking Questionnaire (PTQ)), looming cognitive style (Looming Maladaptive Style Questionnaire (LMSQ)), and attribution style (Attribution Style Questionnaire (ASQ)). Initial explorations were done to determine the cross-group equivalence of these measures since it was the first time some of them were used in South Africa (and exclusively on rape survivors). The construct, semantic, and metric equivalence findings are reported for each measure. In this regard all measures apart from the ASQ had good internal consistency but factor analyses indicated that the measures are more reasonably seen to measure single factor constructs rather than the configuration presupposed by the constituent subscales. The evidence indicates that total scores may be used with some confidence in the construct validity and internal consistency of these measures (with the exception of the ASQ), but that subscale scores should not be over interpreted. Furthermore, the presence of cognitive constructs within the sample was explored and it was found that high levels of shame, PSS, and the cognitive vulnerabilities were present. Finally a multiple regression and concomitant analyses indicated that only knowing the perpetrator had any influence on the variables under study and that shame and rumination accounted for the largest amount of variance in PSS.