Trauma-Related Dissociation Is No Fantasy: Addressing the Errors of Omission and Commission in Merckelbach and Patihis (2018)

Dissociation is commonly a response to trauma that can be associated with significant impairment. In order to deal with dissociation in court from a comprehensive, scientifically informed, and valid perspective, Brand, Schielke, and Brams (Psychological Injury and Law, 10, 283-297, 2017a, b) provided a balanced view of dissociation, its characteristics, evidence base, and best assessment practices. Without an approach such as this, forensic experts risk having insufficient knowledge in its causation, phenomenology, and assessment and accordingly misunderstand trauma-related dissociation (TRD). Brand et al. (Psychological Injury and Law, 10, 283-297, 2017a, b) addressed this issue by providing an overview of TRD relevant to forensic contexts, acknowledging some of the erroneous and misinformed approaches to the topic. Merckelbach and Patihis (2018) offered a critique of Brand et al. (Psychological Injury and Law, 10, 283-297, 2017a, b) that illustrated this lack of knowledge and misunderstanding about TRD. Many of the statements made by these authors are conceptually inaccurate or scientifically misinformed. As we show, they were incorrect when they stated that research is lacking about the inter-rater reliability of dissociative disorder (DD) diagnoses. They were unaware of the error rates of tests and interviews among dissociative samples, which we present here. Merckelbach and Patihis challenged Brand et al., arguing their methods and literature review “lacked a connectivity to existing science” (p. 3), despite extensive citations of studies with DD patients. They argued that we failed to adequately consider malingering despite our discussions of empirically supported methods for assessing it. We show that Merckelbach and Patihis overlooked research that does not support their views. As we review their comments, we illustrate their pattern of misreading and misunderstanding our papers, as well as lapses in their reasoning. The current paper reinforces that in the forensic context, experts can acquire adequate understanding of TRD and its evidence base, and put forward arguments against any harsh critique of the area that is uninformed about, misunderstands, or includes omissions and errors in critical conceptualization, state-of-the-art assessment practices, and research methodology and results.     

Canine Population Data Generated from a Multiplex STR Kit for Use in Forensic Casework*

Abstract: Canine biological specimens are often part of the physical evidence from crime scenes. Until now, there have been no validated canine‐specific forensic reagent kits available. A multiplex genotyping system, comprising 18 short tandem repeats (STRs) and a sex‐linked zinc finger locus for gender determination, was developed for generating population genetic data assessing the weight of canine forensic DNA profiles. Allele frequencies were estimated for 236 pedigreed and 431 mixed breed dogs residing in the U.S. Average random match probability is 1 in 2 × 10³³ using the regional database and 1 in 4 × 10³⁹ using the breed dataset. Each pedigreed population was genetically distinct and could be differentiated from the mixed breed dog population but genetic variation was not significantly correlated with geographic transition. Results herein support the use of the allele frequency data with the canine STR multiplex for conveying the significance of identity testing for forensic casework, parentage testing, and breed assignments.     

Assisting the Courts in Understanding and Connecting with Experiences of Disconnection: Addressing Trauma-Related Dissociation as a Forensic Psychologist,Part I

Although trauma-related dissociation (TRD) is a common reaction to trauma often associated with significant impairment and prognoses that necessitate extended treatment, few assessors are knowledgeable about dissociation, its assessment, and methods for presenting information about it to courts in a way that is evidence-based yet understandable. This paper is the first part of a two-part series that aims to expand forensic assessors’ knowledge about TRD and enhance their ability to assess and present information about dissociation. This article provides overviews of research about dissociation and offers suggestions on how expert witnesses can assist counsel and courts in understanding dissociative reactions and their importance in personal injury cases. Specifically, we define dissociation; discuss the links between trauma, dissociation, and posttraumatic stress disorder; briefly review neurobiological findings related to dissociation; describe dissociative-related impairment and treatment; review challenges that can interfere with accepting and understanding dissociative symptoms; and suggest methods for helping counsel and courts accurately understand and consider TRD in assessing cases and deciding their outcomes.     

How Governments Shape the Risk of Civil Violence: India's Federal Reorganization, 1950–56

Governments are absent from empirical studies of civil violence, except as static sources of grievance. The influence that government policy accommodations and threats of repression have on internal violence is difficult to verify without a means to identify potential militancy that did not happen. I use a within‐country research design to address this problem. During India's reorganization as a linguistic federation, every language group could have sought a state. I show that representation in the ruling party conditioned the likelihood of a violent statehood movement. Prostatehood groups that were politically advantaged over the interests opposed to them were peacefully accommodated. Statehood movements similar in political importance to their opponents used violence. Very politically disadvantaged groups refrained from mobilization, anticipating repression. These results call into question the search for a monotonic relationship between grievances and violence and the omission of domestic politics from prominent theories of civil conflict.     

Assessing Trauma-Related Dissociation in Forensic Contexts: Addressing Trauma-Related Dissociation as a Forensic Psychologist,Part II

Chronic dissociative reactions and dissociative disorders can occur following traumatic events and are associated with suffering and impaired functioning. Therefore, trauma-related dissociation could be part of the claims made in civil actions or contribute to mitigation or an insanity defense in criminal actions. Dissociative reactions to trauma, including dissociative disorders, are more common than most mental health professionals realize. Unfortunately, few professionals have training in the assessment of dissociation, and forensic experts may be unaware of research indicating that standard interpretations of well-regarded assessment instruments can result in inaccurate determinations of symptom exaggeration in cases with dissociation. This paper is the second paper of a two-part series that aims to expand assessors’ knowledge about trauma-related dissociation (TRD) and enhance their ability to assess and present information about dissociation. In this article, we focus on the forensic assessment of TRD and discuss: dissociative symptoms; complex trauma; trauma-related disorders; an approach to assessment of TRD; trauma-related reactions that can impede the detection of TRD; and differential diagnosis of genuine versus feigned dissociation. In addition, we review research related to the validity and appropriate interpretation of the following measures in use with persons with TRD: Dissociative Experiences Scale, Multiscale Dissociation Inventory, Somatoform Dissociation Questionnaire, Trauma Symptom Inventory-2, Multidimensional Inventory of Dissociation, Structured Clinical Interview for Dissociative Disorders-Revised, Minnesota Multiphasic Personality Inventory-2, Personality Assessment Inventory, Structured Interview of Reported Symptoms, Test of Memory Malingering, and the Gudjonsson Suggestibility Scale.