Spiritual Affliction, Psychopathy, and Recidivism: An Empirical Validation of Psychopossession Theory in Forensic Populations

The forensic psychology field has historically lacked empirically validated frameworks for integrating spiritual dimensions of human experience with traditional psychological and criminological perspectives. This gap is particularly significant given that many criminal offenders report spiritual or religious experiences, and theological traditions have long conceptualized evil and sin as relevant to understanding harmful behavior. This dissertation examined the forensic applications of psychopossession theory—a novel theoretical framework integrating the Spectrum of Possession by Evil (SPE) with forensic psychology constructs. Using a quantitative correlational design, the study analyzed archival data from N = 900 adult criminal offenders obtained from Department of Justice databases, with retrospective coding using the SPE-70 instrument (α = .962) and the Psychopossession Assessment Protocol (PAP-112, α = .94). Three research questions examined: (a) relationships between SPE placement and psychopathy (PCL-R), (b) predictive validity of PAP scores for recidivism and violent behavior, and (c) differences in SPE patterns between forensic and general populations. Results provided strong empirical support for psychopossession theory: SPE scores demonstrated a large positive correlation with PCL-R psychopathy scores (r = .702, p < .001), explaining 49% of variance; PAP scores significantly predicted both general recidivism (AUC = .669) and violent recidivism (AUC = .713); and forensic populations exhibited significantly elevated SPE scores compared to general population norms (d = 0.703, 14-point difference), with 41% of forensic offenders scoring at clinical threshold levels (SPE Level 4+). Overall, 8 of 9 hypotheses (88.9%) were supported. These findings validate psychopossession theory as a complementary framework for forensic practice, with practical applications for criminal profiling, interrogation strategy, risk assessment, and treatment planning. The study advances a biopsychosocial-spiritual model that integrates spiritual affliction as a unique dimension of forensic psychological assessment, bridges theological and empirical frameworks, and provides validated instruments for measuring the spiritual-psychiatric interface. Implications for FBI forensic teams, forensic psychiatrists, correctional chaplains, and criminal justice policy are discussed. Keywords: psychopossession theory, forensic psychology, criminal profiling, spiritual affliction, psychopathy, risk assessment, recidivism