Implications of Identification With the Aggressor (IWA) : a Randomized Control Trial

The Selflessness scale (SS)

时间窗: Change between T1 and T2: (48 hours before and immediately after the manipulation= The IWA lab task)

The SS is a 15-item questionnaire on a four-point Likert scale that measured altruism by quantifying the tendency to ignore one's own needs and interests and serve the needs of others. The items ask about sacrifice for family and others, self-denial, and lack of self-interest.

International Trauma Questionnaire (ITQ)

时间窗: Change between T1 and T2: (48 hours before and immediately after the manipulation= The IWA lab task)

The ITQ is an 18-items self-report measure focusing on the core features of Complex PTSD and PTSD. This questionnaire was developed to be consistent with the organizing principles of the ICD-11. The current literature suggests that the ITQ is a valid tool for the assessment of ICD-11 PTSD and CPTSD, with good psychometric properties.

PTSD Checklist for DSM-5 (PCL-5)

时间窗: Change between T1 and T2: (48 hours before and immediately after the manipulation= The IWA lab task)

The PCL-5 is a 20-item self-report questionnaire that examines the presence of the 20 PTSD symptoms listed in the DSM-5. The PCL-5 has a variety of purposes including screening individuals for PTSD and making a provisional PTSD diagnosis. The recommended cut-off for the assessment of PTSD using this tool is 33. The PCL-5 is a very reliable and valid assessment tool for PTSD, with abundant literature that supports its excellent psychometric properties.

Patient Health Questionnaire-9 (PHQ-9)

时间窗: Change between T1 and T2: (48 hours before and immediately after the manipulation= The IWA lab task)

A modified version of the nine-item Patient Health Questionnaire-9 will be used to assess depression symptoms. Participants will rate the frequency (from 0 - not at all, to 3 - nearly every day) in which they were bothered by each depression symptom in the last two weeks. Total PHQ-9 score will be created by summing ratings for all symptoms.

Difficulties in Emotion Regulation Scale (DERS-18)

时间窗: Change between T1 and T2: (48 hours before and immediately after the manipulation= The IWA lab task)

A short form of the DERS is a self-report scale consists of 18-Items, rated on a 5-point scale that measures emotion regulation in the following subscales: 1. Nonacceptance of emotional responses 2. Difficulty engaging in goal-directed behavior 3. Impulse control difficulties 4. Lack of emotional awareness 5. Limited access to emotion regulation strategies 6. Lack of emotional clarity. The DERS has good internal consistency and good test-retest reliability.

The Interpersonal Trauma Doubt Scale (ITDS)

时间窗: Change between T1 and T2: (48 hours before and immediately after the manipulation= The IWA lab task)

Doubt regarding judgments and assessments about the characteristics of the abuse will be assessed via The Interpersonal Trauma Doubt Scale (ITDS). This questionnaire comprises of 10 items tapping one's doubts concerning judgments regarding oneself, the perpetrator, and the abuse.

Identification with the Aggressor Scale (IAS)

时间窗: Change between T1 and T2: (48 hours before and immediately after the manipulation= The IWA lab task)

Levels of IWA will assess via IAS, a 23-item self-report questionnaire. The items will be presented to the participants as reflecting "possible reactions that people may experience as a result of abuse or offense". Participants will be asked to rate on an 11-point Likert scale, ranging from 0% (never) to 100% (all the time), the frequency with which they experienced each manifestation of IWA. The scale comprises four subscales: adopting the perpetrator's experience concerning the abuse ; identifying with the perpetrator's aggression ; replacing one's agency with the perpetrator's ; and becoming hypersensitive to the perpetrator . The IAS has

Maudsley Violence Questionnaire (MVQ)

时间窗: Change between T1 and T2: (48 hours before and immediately after the manipulation= The IWA lab task)

The MVQ is a 54-item questionnaire covering a range of cognitions (beliefs, rules, distortions and attributions) that may provide support, justifications or injunctions to violence. Each item is rated on a 5-point Likert scale, ranging from 1 to 5. The MVQ comprises two subscales: 1) Machismo (42 items) relates to embarrassment over backing down, justification of violence in response to threat and attack, violence as part of being male and strong and the weakness associated with fear and non-violence; 2) Acceptance of violence (14 items) including overt enjoyment and acceptance of violence (in the media and in sport) and injunctions against or rejection of violence as an acceptable behaviour. For the purpose of the study only the Acceptance of violence subscale will be utilized.

Reading the Mind in the Eye Test (RMET)

时间窗: T2: (immediately after the manipulation= The IWA lab task)

RMET is a social cognition measure that examines a participant's ability to identify complex emotions and mental states. Participants will be presented with 36 images of human eyes and will be asked to choose out of 4 words the one that best describes the emotion the person in the image is experiencing. Social cognition will be measured by the number of overall correct answers in the task as well as the response time for correct answers.

7. Sense of Body Boundaries Survey (BBS)

时间窗: T2: (immediately after the manipulation= The IWA lab task)

A subjective feeling of a disturbance or disruption of the body's boundaries will assess via 17 items self-report questionnaire, divided into two scales: one refers to the subject's sense of physical separation from his environment and is called "The barrier subscale" (for example: "I do not feel tangibly separated from the reality surrounding me"), the second is a permeability scale (known as: "The permeability subscale"), and refers to the feeling of physical vulnerability (for example: "Sometimes I imagine/experience my body as a wide open window"). Subjects will be asked to answer on a scale of 1-5, according to their degree of identification with the physical sensation or physical experience presented in the item.

Implicit Association Test (IAT) - new version attitudes towards the characters of the IWA task

时间窗: T2: (immediately after the manipulation= The IWA lab task)

The IAT is a computerized screening test developed by Greenwald and is designed to examine hidden attitudes. A new version was created for the purpose of the current study to examine attitudes towards the characters which are part of the IWA task (Lori, the perpetrator and Sophia the victim. These attitudes will be assessed by measuring automatic links between the characters (for example "Lori" versus "Sophia ") and attributions ("good" or "bad"). The test has seven stages in which the participants are required to classify words into different categories as quickly as possible By pressing the right ("k")/left ("D") key, the reaction time and the number of errors in the cross-category steps will reflect the strength of the implicit beliefs about the characters which are part of the IWA task.

Implicit Association Test (IAT) - new version attitudes regarding harm/violent behavior

时间窗: T2: (immediately after the manipulation= The IWA lab task)

The IAT is a computerized screening test developed by Greenwald and is designed to examine hidden attitudes. A new version was created for the purpose of the current study to examine attitudes towards the legitimacy of harm/violent behavior. These attitudes will be assessed by measuring automatic links between certain concepts (for example "abuse" versus "love") and attributions (for example "permitted" or "forbidden"). The test has seven stages in which the participants are required to classify words into different categories as quickly as possible By pressing the right ("D")/left ("K") key, the reaction time and the number of errors in the cross-category steps will reflect the strength of the implicit beliefs regarding the legitimacy of harm/violent behavior.

Dissociative Experiences Scale-II (DES-II)

时间窗: Change between T1 and T2: (48 hours before and immediately after the manipulation= The IWA lab task)

Dissociation will be measured by the DES-II, a 28-item self-report questionnaire that measures the frequency of dissociative experiences. The total dissociative score is computed as the mean of items, ranging from 0 to 100. The DES-II has been shown to have high validity and reliability.