Incremental Validity of the Psychological Inventory of Criminal Thinking Styles and Psychopathy Checklist: Screening Version in Predicting Disciplinary Outcome

A group of 136 male inmates housed in a medium security federal correctional institution were followed for a period of 24 months for evidence of disciplinary infractions (incident reports) after completing the Psychological Inventory of Criminal Thinking Styles (PICTS) and being scored on the Psychopathy Checklist: Screening Version (PCL:SV). Age, prior incident reports, the PICTS General Criminal Thinking (GCT) score, and the PCL:SV total score were included in a series of negative binomial regressions and Receiver Operating Characteristic (ROC) analyses of three increasingly more serious outcomes: total incident reports, major incident reports, and aggressive incident reports. Results indicated that the PICTS GCT score and PCL:SV total score were incrementally valid predictors of all three outcomes, with the strongest effects occurring when more severe incident reports were predicted. On the other hand, only the PICTS GCT score and Proactive Criminal Thinking (P) scale produced more than one significant ROC finding.     

Predicting Recidivism with the Psychological Inventory of Criminal Thinking Styles and Level of Service Inventory-Revised: Screening Version

Recidivism was evaluated in 178 male inmates administered the Psychological Inventory of Criminal Thinking Styles (PICTS) and scored on the Level of Service Inventory-Revised: Screening Version (LSI-R:SV) 1–55 months before their release from prison. Age, prior charges, the LSI-R:SV total score, and the PICTS General Criminal Thinking (GCT), Proactive Criminal Thinking (P), and Reactive Criminal Thinking (R) scores served as predictors of recidivism in follow-ups spanning 1–53 months. Age, prior charges, and the PICTS GCT and R scales consistently and incrementally predicted general recidivism (all charges), whereas prior charges and the PICTS R scale consistently and incrementally predicted serious recidivism (more serious charges). Although these results support the predictive efficacy and incremental validity of content-relevant self-report measures of criminality like the PICTS, they also indicate that the effect is modest and in need of further clarification. One area requiring further investigation is the potential role of the PICTS, particularly the R scale, as a dynamic risk factor.     

The Psychological Inventory of Criminal Thinking Styles and Psychopathy Checklist: Screening Version as Incrementally Valid Predictors of Recidivism

A follow-up of 107 male federal prison inmates previously tested with the Psychological Inventory of Criminal Thinking Styles (PICTS) and Psychopathy Checklist: Screening Version (PCL:SV) was conducted to test the incremental validity of both measures. The PICTS General Criminal Thinking (GCT) score was found to predict general recidivism and serious recidivism when age, prior charges, and the PCL:SV were controlled. The PCL:SV, on the other hand, failed to predict general and serious recidivism when age, prior charges, and the PICTS were controlled. These findings support the hypothesis that content-relevant self-report measures like the PICTS are capable of predicting crime-relevant outcomes above and beyond the contributions of basic demographic variables like age, criminal history, and such popular non-self-report rating procedures as the PCL:SV.     

Predicting institutional adjustment with the Psychological Inventory of Criminal Thinking Styles composite scales: Replication and extension

Purpose . The principal aim of this study is to determine whether the Proactive (P) and Reactive (R) composite scales of the Psychological Inventory of Criminal Thinking Styles (PICTS) are capable of predicting institutional adjustment in a group of medium security prison inmates. Method . The P and R composite scales were correlated with dichotomized and count measures of total, non‐aggressive and aggressive incident reports (IRs) received during a 2‐year period in a group of 219 male medium security US federal prisoners. Results . The R scale predicted dichotomized total, non‐aggressive, and aggressive IRs (point biserial correlations, receiver operating characteristic (ROC) analysis, classification analyses) and all three classes of count IRs (negative binomial regression) when age, education, race, marital status, confining offence, prior disciplinary record, program completion and time in the institution were controlled. The P scale, on the other hand, predicted dichotomized total (point biserial correlation, classification analysis) and non‐aggressive (point biserial correlation, ROC) IRs and the total disciplinary count when age, education, race, marital status, confining offence, prior disciplinary record, program completion and time in institution were accounted for in a negative binomial regression. Conclusion . The modest but consistent relationship observed between the R scale and subsequent disciplinary infractions suggests that R may well serve as one component of a larger assessment battery for identifying inmate's at risk for future disciplinary problems.