These are the study materials, including 1) hypothetical data scenarios, which portray an interactive hypothetical dating/sexual encounter with a male actor, whereby if the participant stops consenting to the activity described, she is directed to a sexual assault scenario, wherein a legal definable act of rape is described; 2) medical screening questionnaire; 3) consent form; 4) interview questions following the scenario, including questions for a cognitive interview, and questions for a standard interview; 5) an alcohol side effects questionnaire.This research investigates the effects of alcohol on memory for a sexual assault. Previous research suggests that alcohol intoxication narrows attention, thereby making people more responsive to the most central and emotionally salient elements of a situation. In sexual assault, the culprit’s physical appearance and actions are the most emotionally salient aspects of the situation. Other aspects - such as the presence of bystanders and the physical environment, are considered peripheral because they capture less of the victim’s attention. In this research, female participants will be given different doses of alcohol and then will read a sexual assault scenario. 24 hours later their memory for the scenario will be tested. The memories of participants who were given different doses of alcohol will be examined to see if they differ in terms of their accuracy. The research will also examine whether participants who were under the influence of alcohol whilst reading the scenario are more susceptible to memory distortion. The results will provide essential knowledge for establishing best practice guidelines for interviewing witnesses who were intoxicated.

We randomly assigned women to consume alcohol or tonic water, controlling for alcohol expectancy. Women then participated in an interactive hypothetical sexual assault scenario. There were 16 versions of the scenario, and women were randomly assigned to read one of them. The Scenarios varied in the location (n = 4 locations) in which the event takes place, and in specific details about the perpetrator the surrounding environment (n = 4 detail versions). Women were pre-screened to ensure that they did not have any health conditions that would preclude them from consuming alcohol. Women were interviewed about the assault with a modified Cognitive Interview and with a Standard Interview.