Assessment of Sex Offenders With the Minnesota Multiphasic Personality /Inventory-2-Restructured Form

Using the MMPI-3 in Legal Settings

In this paper, we review the historical evolution of the MMPI instruments, consider the empirical foundations for its use in Forensic Mental Health Assessments (FMHAs) with particular emphasis on the applicability of MMPI-2-RF research to these evaluations, and identify ways in which the inventory can be effectively but also inappropriately used in these assessments. We also review appellate court decisions related to forensic uses of the MMPI and discuss implications for cross-examination on MMPI-3-based testimony, emphasizing the need for forensic practitioners to be familiar with the empirical research available to guide MMPI-3 use in FHMAs. We identify areas needing further research, including the utility of the test in assessments of persons of color, investigations of the applicability of MMPI-3 results in various specific forensic assessments and rehabilitative applications, and further research on implications of the new English and Spanish-language norms. Potential contributions of studies using the updated MMPI-3 scales in descriptive research on forensic populations are also discussed. We conclude that when used properly to assess for evidence of invalid responding that may affect FMHAs, or psychological functioning relevant to answering psycho-legal referral questions, the MMPI-3 rests on solid empirical foundations that can withstand the scrutiny inherent in forensic evaluations.

Neuroanatomical Differences Among Sexual Offenders: A Targeted Review with Limitations and Implications for Future Directions

As sexual assault and child sexual abuse continue to be worldwide public health concerns, research has continued to explore factors associated with sexual offending. Structural and functional neuroanatomical brain differences have been examined in an effort to differentiate sexual offenders and their behavior. This targeted review searched PubMed and Google Scholar for empirical studies using brain imaging techniques to examine possible structural or functional differences among control groups compared with at least one group of sexual offenders with contact offenses. This targeted review summarizes the structural and functional findings of 15 brain imaging studies (i.e., computed tomography, diffusion tensor imaging, magnetic resonance imaging, positron emission tomography, and functional magnetic resonance imaging), which suggest possible differences in brain size and gray matter volume, cortical thickness, white matter connectivity, and specific structural and functional differences among brain regions (fronto-temporal region, amygdala, prefrontal cortex, etc.). The methodological limitations of brain imaging studies and the associated findings with regard to sexual offenders are highlighted, as research indicates that many of the proposed differences in brain structure and function are not unique to this population. We further highlight several limitations to using neuroimaging studies to examine this population of interest, including publication bias, small sample size, underpowered studies, and all-male samples. As these results are mixed and findings are not seemingly unique to sexual offenders, we suggest future sexual offender research may benefit from focusing on more financially feasible options, such as neuropsychological assessment approaches, to assess for and attend to offenders' criminogenic and rehabilitative/therapeutic needs in alignment with the risk-need-responsivity model.

The MMPI-2-Restructured Form (MMPI-2-RF): Assessment of Personality and Psychopathology in the Twenty-First Century

This article describes the Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF) and situates the instrument in contemporary psychopathology and personality literature. The historical evolution of the MMPI instruments is highlighted, including how failure to update the test for several decades resulted in increasing disinterest by basic researchers and how the restructuring efforts beginning in the 2000s promised to realign the instrument with basic research. In this regard, the construct validity associated with MMPI-2-RF scores in the context of contemporary dimensional models of psychopathology is considered. Research supporting the applied utility of the MMPI-2-RF scales in a variety of contexts-including mental health screenings, presurgical evaluations, forensic assessment, and public safety screening-is also reviewed. Critiques of the MMPI-2-RF are described and addressed. Finally, a series of recommendations for future updates of the MMPI-2-RF are described along with a path toward the MMPI-3.

Of Fallacies and Errors, New and Repeated: A Rejoinder to Butcher et al. (2018)

Butcher, Hass, Greene, Nelson, Nichols, and Williams ( 2018 ) responded to my (Ben-Porath, 2018 ) critique of Butcher, Hass, Greene, and Nelson's (2015) analysis of Ted Kaczynski's MMPI-2-RF, purporting to find logical fallacies in my arguments and shortcomings in my interpretation of MMPI-2-RF scales. Butcher et al. ( 2018 ) repeated several previously refuted arguments and opinions, while failing to acknowledge, let alone consider, prior responses to their claims. In this rejoinder I refute (again) Butcher et al.'s assertion that empirical data raise questions about the "clinical sensitivity" of MMPI-2-RF scales, identify an extensive literature relevant to forensic use of the MMPI-2-RF that Butcher and colleagues have systematically ignored, and identify a series of logical and factual fallacies along with new and repeated errors of omission and commission in Butcher et al.'s response.