Measuring sexual interest using a pictorial modified Stroop task, a pictorial Implicit Association Test, and a Choice Reaction Time task

Tasks that can successfully measure sexual interest have utility in forensic settings. Prior to use with problematic sexual interest however, work is needed in validating such tasks. This study focused on the measurement of non-deviant sexual interest. Eleven gay and fourteen straight participants each completed a pictorial Implicit Association Test (IAT), a pictorial modified Stroop task (P-MST) and a Choice Reaction Time (CRT) task. Each task was designed to tap into the sexual interest of participants. Stimuli were of males and females in bathing suits along with control images and sexual and non-sexual words. The IAT was most successful in differentiating between gay and straight participants. The P-MST also performed well, though the task’s position in the battery of tasks seemed to affect the results. The CRT tasks did not successfully show group differences. Theoretical and methodological implications of the effectiveness of the three tasks in tapping into sexual interest are discussed

The Screening Scale for Pedophilic Interests (SSPI): Construct, Predictive, and Incremental Validity

This study of 410 adult male sex offenders against children, using data from the Dynamic Supervision Project (Hanson, Harris, Scott, & Helmus, 2007), examined the construct, predictive, and incremental validity of the Screening Scale for Pedophilic Interests (SSPI; Seto & Lalumière, 2001), a brief proxy measure of phallometrically assessed sexual response to children that is based on sexual victim characteristics. As predicted, the SSPI was significantly related to the Deviant Sexual Interests item on the STABLE-2007 (Hanson et al., 2007), a dynamic risk measure encompassing multiple domains, and with the Deviant Sexual Interests item from its predecessor, the STABLE-2000 (Hanson et al., 2007). The SSPI was unrelated (or more weakly related) to items measuring general antisociality. In addition, the SSPI significantly predicted sexual recidivism, defined as new charges or convictions for sexual offenses, and a broader sexual recidivism outcome that included breaches of community supervision conditions that might involve sexually motivated behavior (e.g., being in the presence of children unsupervised). The SSPI did not add to the predictive accuracy of 2 actuarial risk measures, the Static-99R and Static-200R (Helmus, Thornton, Hanson, & Babchishin, 2012), but it did add to the predictive accuracy of the STABLE-2007. Additional analyses suggest the SSPI can serve as a substitute for the STABLE-2007 Deviant Sexual Interests item, if necessary (e.g., in archival research), when assessing sexual offenders against children

A descriptive model of the offence chain for imprisoned adult male firesetters (descriptive model of adult male firesetting)

Purpose: Firesetting has devastating consequences. Although some theoretical efforts have been made to explain firesetting (i.e., a small number of multi- and single-factor theories), little effort has been devoted to understand how deliberate firesetting unfolds across time (i.e., micro or offence chain theories). This research aimed to produce the first descriptive offence chain theory for incarcerated adult male firesetters.Methods: Thirty-eight adult male firesetters—recruited from prison establishments in England and Wales—were interviewed about the events, thoughts and feelings leading up to, surrounding, and immediately following a deliberate incident of firesetting. Results: Using Grounded Theory analysis, the Descriptive Model of Adult male Firesetting (DMAF) was developed documenting the cognitive, behavioural, affective and contextual factors leading to a single incident of deliberate firesetting. Conclusions: New information generated from the DMAF is presented and its contributions to the current evidence base are highlighted. Clinical implications, limitations and future research directions are also discussed

‘I know how they must feel’: empathy and judging defendants

The current study investigated the effects of state and trait empathy in legal judgments and tested the relationship between trait and state emotion in one hundred and fifty eight students aged 18-59. Assessments were taken of participants’ trait empathy and then state empathy was induced in half the sample. Following this all participants read a trial transcript and made judgments regarding: the verdict decision; the defendant’s responsibility for the offense; what would be an appropriate punishment; the likelihood that the offender would offend in the future; and whether the defendant felt remorse for committing the offense. Findings showed that both trait and state empathy predicted attributions of offender remorse. State empathy also predicted judgments of offender responsibility and agreement with verdict decisions in a lenient direction. Findings also showed that state and trait empathy did not interact. The results indicate that trait and state empathy work independently to influence legal judgments and that inducing empathy in decision-makers can impact on trial outcomes above and beyond the facts of the case

Latency-Based and Psychophysiological Measures of Sexual Interest Show Convergent and Concurrent Validity.

Latency-based measures of sexual interest require additional evidence of validity, as do newer pupil dilation approaches. A total of 102 community men completed six latency-based measures of sexual interest. Pupillary responses were recorded during three of these tasks and in an additional task where no participant response was required. For adult stimuli, there was a high degree of intercorrelation between measures, suggesting that tasks may be measuring the same underlying construct (convergent validity). In addition to being correlated with one another, measures also predicted participants' self-reported sexual interest, demonstrating concurrent validity (i.e., the ability of a task to predict a more validated, simultaneously recorded, measure). Latency-based and pupillometric approaches also showed preliminary evidence of concurrent validity in predicting both self-reported interest in child molestation and viewing pornographic material containing children. Taken together, the study findings build on the evidence base for the validity of latency-based and pupillometric measures of sexual interest

Pupillary Response as an Age-specific Measure of Sexual Interest

In the visual processing of sexual content, pupil dilation is an indicator of arousal that has been linked to observers’ sexual orientation. This study investigated whether this measure can be extended to determine age-specific sexual interest. In two experiments, the pupillary responses of heterosexual adults to images of males and females of different ages were related to self-reported sexual interest, sexual appeal to the stimuli, and a child molestation proclivity scale. In both experiments, the pupils of male observers dilated to photographs of women but not men, children or neutral stimuli. These pupillary responses corresponded with observer’s self-reported sexual interests and their sexual appeal ratings of the stimuli. Female observers showed pupil dilation to photographs of men and women but not children. In women, pupillary responses also correlated poorly with sexual appeal ratings of the stimuli. These experiments provide initial evidence that eye-tracking could be used as a measure of sex-specific interest in male observers, and as an age-specific index in male and female observers

Experts in rape: evaluating the evidence for a novice-to-expert continuum in the offense behavior and cognition of sexual offenders

Despite being over 15 years old researchers have been slow to adopt the competency or expertise perspective advocated by Ward (1999) as a complimentary viewpoint to the dominant deficit model of sexual offending. A growing body of research on the behavioral and cognitive impact of expertise suggests that it is timely to revisit the question of whether individuals can become expert at rape. This review summarizes the key points in Ward’s theory and evaluates the scant research that could lend it support. The expertise perspective is a fertile area for future research and may provide a mechanism for explaining the relationship between explicit and implicit measures of distorted cognition. The review makes suggestions for future research and appraises the clinical implications of considering sexual aggressors as novices or experts

Identifying the Coping Strategies of Nonoffending Pedophilic and Hebephilic Individuals From Their Online Forum Posts

Individuals who identify as pedophilic or hebephilic, and who do not offend, are increasingly visible in online discourse and as a focus of research. Developing knowledge about this population will offer insights into their psychological needs and, potentially, into the mechanisms and strategies individuals use to live offense-free lives. This study examined coping strategies among members of an online forum supporting pedohebephilic individuals who do not wish to offend. Forum users’ posts were analyzed using thematic analysis. Eleven themes emerged which were classifiable into three superordinate themes around (1) the acceptance of pedophilia, (2) strategies to stay safe, and (3) dealing with sexual arousal. These themes offer insight into the varying strategies used by these individuals to cope with stress and/or to remain offense free. Understanding whether these strategies are adaptive or maladaptive may help develop better support services for those who have not offended and may inform prevention efforts

A practical guide to assessing adult firesetters’ fire-specific treatment needs using the Four Factor Fire Scales

Objective: Practitioners working with offenders who have set fires have access to very few measures examining fire-specific treatment needs (e.g., fire interest, fire attitudes). In this paper, we examine the new Four Factor Fire Scales (Ó Ciardha et al., 2014), which may be used by practitioners to examine fire-specific treatment needs for offenders who have set deliberate fires. We present a standardized scoring procedure when using these scales, as well as an associated scoring template for practitioner use. Method: Norm data are based on male and female firesetters (n=378) and non-firesetters (n=187) recruited from 19 prison establishments (including 6 female establishments, 1 Young Offender Institutions) and 12 secure mixed gender mental health settings. Results: We present a full overview of all data we have collected to date relating to the Four Factor Fire Scales across prison, mental health and young offending participants. For each population, we present mean scores as well as associated cut off scores and reliable change indices to aid practitioners in their interpretation of scores. Conclusions: The Four Factor Fire Scale provides professionals working in the area with a robust template for administering, scoring, and interpreting the fire-specific factors currently identified as playing a role in deliberate firesetting behavior. Strengths and limitations of the measure are discussed

The Prevalence of Sexual Interest in Children and Sexually Harmful Behavior Self-Reported by Men Recruited Through an Online Crowdsourcing Platform

This study examined the feasibility of using crowdsourcing to recruit men who self-report sexual interest in children or sexually problematic behavior involving children. Crowdsourcing refers to the use of the internet to reach a large number of people to complete a specific task. A non-representative sample of males (n = 997) participated in a brief self-report survey examining age of attraction, sexual interest in children, proclivity toward sexual offenses involving children, and history of sexual offending. Almost a quarter of the sample (23.1%) indicated some degree of sexual interest in children, propensity to sexually offend against children, and/or actual offending behavior. We present our data broken down by type of interest or behavior, and examine the frequency of these outcomes. Findings are likely to be of value to those considering the viability of crowdsourcing to overcome the limitations or challenges of face-to-face research on stigmatizing interests and behaviors. Findings also contribute to estimating prevalence of self-reported sexual interest in children, and sexual offending behavior towards children, across different countries