The Measurement of Criminal Dangerousness as a Personality Construct: Further Validation of a Research Index

The validity of an index measuring criminal dangerousness was further evaluated by determining whether it could discriminate among prisoners committing violent crimes at three levels of severity. The index score was a multiplicative product of an antisocially score and an IQ score, with high antisocially and low IQ reflecting greater dangerousness. Comparison of index scores for men committing murder (most severe); robbery and rape (intermediate severity); and assault, child molestation, and manslaughter (least severe); revealed a significant monotonic increase in dangerousness scores as increasingly severe crimes were considered. Several recommendations for the measurement of criminal dangerousness were offered.     

Differentiation of death-row murderers and life-sentence murderers by antisociality and intelligence measures

Prior studies of dangerousness have confirmed that the combination of high antisociality and low IQ is associated with male criminal violence and that the same combination can discriminate within a group of violent male criminals by level of severity. My study continued the validation of this two-component measure by showing that men convicted of murder and given the death sentence for their more heinous crimes were more dangerous than murderers who received life sentences. Men who had been extended the death penalty, who selected female victims, and whose murders were judged to have been especially cruel received extraordinarily high dangerousness scores relative to all other murderers. The assumption that high antisociality and low IQ would lead to serious violence because of the criminal's inability to deal with complications that arise in confronting the victim received some support. The murders of more dangerous men followed stronger victim resistance than the murders committed by less dangerous men.     

Differentiation of Death-Row Murderers and Life-Sentence Murderers by Antisociality and Intelligence Measures

Prior studies of dangerousness have confirmed that the combination of high antisociality and low IQ is associated with male criminal violence and that the same combination can discriminate within a group of violent male criminals by level of severity. My study continued the validation of this two-component measure by showing that men convicted of murder and given the death sentence for their more heinous crimes were more dangerous than murderers who received life sentences. Men who had been extended the death penalty, who selected female victims, and whose murders were judged to have been especially cruel received extraordinarily high dangerousness scores relative to all other murderers. The assumption that high antisociality and low IQ would lead to serious violence because of the criminal's inability to deal with complications that arise in confronting the victim received some support. The murders of more dangerous men followed stronger victim resistance than the murders committed by less dangerous men.     

Making the Punishment Fit the Crime and the Criminal: Attributions of Dangerousness as a Mediator of Liability1

This research examines how individuals use information regarding characteristics of crimes (e. g., crime severity) and characteristics of the offender (e. g, prior criminal record) to form an impression of the criminal as dangerous to society, and to make liability judgments. Two studies presented college students and community members with crime scenarios and asked for ratings of crime severity, likelihood of recidivism, perceived dangerousness of the offender, and liability. Type of crime, severity. and likelihood of recidivism significantly predicted both liability and perceived dangerousness. Further more, in crimes against people only, the effects of severity and recidivism on liability were partially mediated by individuals' perceptions of the offender as criminally dangerous. The discussion examines the implications of these findings for attribution theory and sentencing in the criminal‐justice system.     

男性犯罪者人格对人身危险性的影响:有中介的调节模型

以463名男性犯罪者为调查对象,在控制人口学变量后,探讨人格、成熟应付方式、社会支持与人身危险性的关系。结果表明:(1)年龄、文化程度、婚姻和犯罪次数是人身危险性的重要预测变量。(2)人格可以显著预测人身危险性。(3)社会支持调节人格与人身危险性之间的关系。(4)这种调节作用以成熟应付方式为中介变量,其中通过中介变量起作用的调节效应占总调节效应的29.4%。因此,人格对男性犯罪者人身危险性的影响是有中介的调节效应。     

Judged Person Dangerousness as Weighted Averaging 1

This article reports two experiments requiring subjective evaluative judgments of the potential dangerousness of hypothetical persons. The research operationally fits the paradigm for the study of personality impression formation, and seeks to illuminate the processes by which two offenses combine to evoke a net judgment of dangerousness. The theoretical framework and philosophy adopted is Anderson's information integration and functional measurement theory. In Study 1, all paired combinations of 10 distinctive crimes were each presented as having been committed by the same person on two separate occasions. Subjects judged overall offender dangerousness. In Study 2, judgments of dangerousness were made when the time purportedly elapsing between two crimes was systematically varied over several ranges of up to 41 years. Three key findings emerged. First, judgments of dangerousness result from an averaging process. This result yields paradoxical implications having considerable pragmatic significance. Second, judgments of dangerousness following two sequential criminal acts (one of high and one of low seriousness) are consistently higher when the high seriousness one is the second crime. Third, with certain qualifications discussed in the text, a serious earlier crime appears to elicit an approximately constant magnitude of judged present dangerousness no matter how long ago it was perpetrated. This result implies that subjects infer considerable permanence of criminal predilection to those who have committed a serious crime in the past.     

Analysis of WAIS-IV index score scatter using significant deviation from the mean index score

The Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV) does not include verbal IQ and performance IQ scores, as provided in previous editions of the scale; rather, this edition provides comparisons among four index scores, allowing analysis of an individual's WAIS-IV performance in more discrete domains of cognitive ability. To supplement the pairwise index score comparisons included in the WAIS-IV manuals, this article describes the use of the mean of the four index scores (the average index score) as a baseline for analyzing index score variability and as a method for identifying strengths and weaknesses within an individual's index score pattern. Davis's formula was used to calculate critical values for the identification of index scores with a statistically significant difference from the average index score. Subsequent analysis of the WAIS-IV normative sample indicates that variability in performance at the index score level is not uncommon in the general population. More than 70% of individuals in the normative sample have at least one index score that differs significantly from their mean index score. This variability in index score performance appears to have little relationship to age or gender, but it is strongly related to the full-scale IQ.     

Psychopathy and intelligence: a second look

Empirical studies using the PCL-R (Hare, 2003) have shown no intelligence differences between psychopaths and nonpsychopaths. However, Cleckley (1976) argued that psychopaths often show superior intelligence. The purpose of the present study was to test the hypothesis that the correlation between intelligence and severity of criminal development is the opposite in psychopaths than in nonpsychopathic criminals using a sample of 370 men sentenced for violent (nonsexual) crimes. That pattern would provide a way of explaining the discrepancy between Cleckley's view and later empirical work. The results showed that for nonpsychopaths, higher total IQ and particularly verbal intelligence meant a later start in violent crime. For those diagnosed as psychopaths, however, this association was reversed.     

The prediction of violent and nonviolent criminal behavior in a methadone maintenance population

The utility of traits associated with Antisocial Personality Disorder in making risk assessments of violent and nonviolent crimes was examined in 254 subjects sampled from a methadone maintenance population. A factor analysis of a number of baseline measures resulted in five factors measuring hostility, insecure attachment, impaired reality testing, antisocial personality, and empathy. These factors were used in logistic regression analysis to predict charges for violent and nonviolent crimes over a 2-year period. Individuals with high scores on the antisocial personality factor had an increased risk of both violent and nonviolent criminal charges. Individuals with low scores on the empathy factor were at high risk for violent crimes. In an analysis using the factor components rather than the factors, the measures of perspective-taking and a socialization were associated with violent criminal charges, and the measure of psychopathy, but not antisocial behavior, was associated with nonviolent criminal charges. The results support the use of measures of personality traits in addition to measures of a history of antisocial behavior in making violence risk assessments in substance-dependent patients. The DSM construct and diagnosis of Antisocial Personality Disorder may be enhanced by greater emphasis on personality traits associated with antisocial behavior.     

Word identification in adults with mild mental retardation: does IQ influence reading achievement?

OBJECTIVE: To assess the relationship between word identification and intelligence in adults with mild mental retardation (IQ < 80). METHOD: A standardized evaluation was administered to 67 adults with mild mental retardation. The evaluation included a psychiatric interview, the WAIS-R, and a 2-h interview with a speech therapist and reading tests. RESULTS: Causes of mental retardation were diverse in the sample, and IQ scores ranged from 43 to 79 (mean score = 64). All subjects exhibited reading impairment, including 69% with severe impairment. No subject with an IQ score under 65 was able to perform adequately in the word identification tasks. Word identification was correlated with total and verbal IQ, but not with performance IQ. CONCLUSION: Our results suggest that, in contrast to subjects with normal intelligence, IQ score is correlated with reading in subjects with mild mental retardation. Finally, remediation should be preferentially implemented for subjects with IQ score greater than 65.     

An examination of the assumptions of specialization, mental disorder, and dangerousness in sex offenders

Sex offenders have been singled out for differential treatment by the legal and mental health systems. This article attempts to inform law reform efforts and criminal justice mental health policy by examining the assumptions underlying differential legal and mental health treatment of sex offenders. These assumptions include the theories that sex offenders are mentally disordered and in need of treatment, specialists in sex crimes, and more dangerous than other criminal offenders. Empirical findings demonstrate that sex offenders are not specialists in sex crimes and are not mentally disordered. Examination of past research suggests that sex offenders are not at more risk than other criminal offenders to commit future sex crimes. Implications of research findings for selective prosecution of sex crime cases, mental health policy, sex offender legislation, and predictions of future dangerousness are discussed. Proposals for future research needs and law reform are presented.     

Dimensional Structure of Judgments of Crimes1

This research explored the correlates and dimensionality of judgments of crimes varying widely in seriousness, and the structure of their mental representation. In Experiment 1, 27 crimes were judged independently along 12 scales. A principal-factors analysis of interscale correlations yielded a major factor of evaluation, best defined by scales of seriousness, moral wrongfulness, and severity of deserved punishment. Judgments concerning perceptions of probability of conviction, punishment given, likelihood of physical harm, offender dangerousness, and degree of understanding also loaded on the evaluation factor. The second factor was Frequency of Occurrence. The results were generally stable at the local levels of person crimes and nonperson crimes. In Experiment 2 crime stimuli were subjected to pairwise similarity judgments that were analyzed using the Kruskal-Shepard MDSCAL and Sattath-Tversky ADDTREE procedures. MDSCAL yielded an interpretable two-dimensional representation and permitted approximate recovery of the seriousness ordering of crimes. The ADDTREE solution yielded two major partitionings, of person versus nonperson crimes, and several psychologically significant nested subsets clustered within each partition. The two psychometric outcomes were congruent. The overall results confirm a primary dimension of evaluation/seriousness. Implications for research in criminology and the comparative merits of similarity judgments versus single-scale seriousness ratings of crimes are discussed.     

Factors associated with experts' opinions regarding criminal responsibility in The Netherlands

In many jurisdictions, offenders need to have freely chosen to commit their crimes in order to be punishable. A mental defect or disorder may be a reason for diminished or total absence of criminal responsibility and may remove culpability. This study aims to provide an empirically based understanding of the factors on which experts base their judgements concerning criminal responsibility. Clinical, demographic and crime related variables, as well as MMPI-2 profiles, were collected from final reports concerning defendants of serious crime submitted to the observation clinic of the Dutch Ministry of Justice for a criminal responsibility assessment. Criminal responsibility was expressed along a five-point scale corresponding to the Dutch legal practice. Results showed that several variables contributed independently to experts' opinions regarding criminal responsibility: diagnosis (Axis I and II), cultural background, type of weapon used in committing the crime, and whether the defendant committed the crime alone or with others. In contract to jurisdictions involving a sane/insane dichotomy, the Dutch five-point scale of criminal responsibility revealed that Axis II personality disorders turned out to be mostly associated with a diminished responsibility. MMPI-2 scores also turned out to have a small contribution to experts' opinions on criminal responsibility, independently of mere diagnostic variables. These results suggest that experts base their judgements not only on the presence or absence of mental disorders, but also on cultural and crime related characteristics, as well as dimensional information about the defendant's personality and symptomatology.     

A comparison of self‐report of criminal involvement and official arrest records

Self‐reports of arrests and official arrest records were compared for 250 male and 80 female participants in the ongoing Hyperactivity Follow‐Up Study of Young Adults at University of California at Berkeley. For males, kappa coefficients indicated good statistical agreement between arrest records and self‐report measures for 7 of the 12 types of crimes. Statistical agreement, however, may not be the most meaningful yardstick to judge concordance. Additional analyses reveal that for almost all of the crimes examined, one third or more of those with an arrest record for the crime failed to reveal this information on the self‐report measure. Arrests for both some high‐frequency, less serious crimes and some low‐frequency, more serious crimes were not revealed in the subjects’ self‐reports. An examination of the unique information gained from self‐reports found that the subjects most often reported committing public disorder crimes for which they were not caught (over 30%) and were least likely to self‐report crimes against people (less than 10%). Furthermore, subjects with more convictions were more likely to accurately self‐report their criminal involvement. Since both self‐report and official records each contribute unique information and reflect different sources of error, it is proposed that a combination of both types of records is the most inclusive indicator of criminal activity in adulthood. Aggr. Behav. 27:44–54, 2001. © 2001 Wiley‐Liss, Inc.     

Discrepancies between premorbid and current IQ as a function of progressive mental deterioration

The declining cognitive functioning typically found in patients with Alzheimer's disease presents an opportunity to study that decline. The changing magnitude of ever widening discrepancies between premorbid estimators of IQ and observed IQ increases as severity of the disease increases. Premorbid IQs estimated by these scores (the National Adult Reading Test-Revised, the reading tests of the Revised and Third Editions of the Wide Range Achievement Test, and a demographically based regression index for the Wechsler Adult Intelligence Scale-Revised) had relatively similar discrepancies from obtained WAIS-R Full Scale IQs in samples of normal elderly (n = 30), and elderly patients diagnosed with mild (n = 30) and moderate Alzheimer's disease (n = 30) dementia. The discrepancies became larger, regardless of premorbid estimator, as disease severity progressed from none to mild to moderate across the samples.     

Comparison and combination of recall and Background Interference Procedures for the Bender-Gestalt Test with brain-damaged and schizophrenic patients.

The Bender-Gestalt Test was administered under standard, recall, Background Interference Procedure (BIP), and BIP-recall conditions to 20 brain-damaged and 20 schizophrenic male inpatients. Individual recall, BIP, and BIP-recall scores differentiated between the groups prior to controlling for IQ, but only recall and BIP-recall continued to discriminate once IQ was held constant. The use of difference scores corrected for standard copy performance (base level) resulted in improved diagnostic discrimination compared to difference scores alone. However, this procedure also produced a substantial multiple correlation with IQ and a consequent loss of group differentiation for the BIP difference score, while failing to yield an appreciable increase in predictive accuracy over individual scores for recall and BIP-recall. Nonetheless, a significant effect emerged independently of both recall and IQ for the BIP-recall score, suggesting that the BIP hypothesis may have merit within the context of memory functioning.     

Seat Preference in the Classroom

Abstract

Observers rated 60 criminal defendants on the following four items related to attractiveness: physical attractiveness, neatness, cleanliness, and quality of dress. The four-item Attractiveness Index correlated significantly and negatively with severity of punishment (acquitted to 20 years); the correlation remained significant when seriousness of the crime was controlled. AI ratings did not predict whether the defendant was convicted or acquitted. Some racial disparities in severity of punishment were noted: Nonwhites, as compared to whites, were more conviction prone, more apt to be charged with violent crimes, and, once convicted, more likely to be sentenced.     

Analyse de la dispersion des indices du WISC-IV en utilisant l'écart significatif par rapport à la moyenne des quatre indices

The discontinuation of traditional Verbal and Performance IQs in the WISC-IV and their replacement by four Indices lead to important modifications in practitioners' habits. The scatter analysis of the composite scores should be now considered in another way. In this paper, we advocate the use of the average index score as a baseline to analyze the Index score variability and to identify strengths and weaknesses in the profile of the Index scores. Davis's formula was used to compute reference values that can be used to highlight the Index scores significantly moving away from the average index score. The method was used for analyzing the Index score scatter in the standardization sample of the French adaptation of the WISC-IV. A rather important dispersion of the Index scores around the average index score was observed. More than 60% of the standardization sample showed at least one Index scores significantly moving away from the average index score. This variability was unrelated to gender, age and IQ level.     

Graduate student WAIS-III scoring accuracy is a function of full scale IQ and complexity of examiner tasks

Research on the Wechsler Adult Intelligence Scale-Revised and Wechsler Adult Intelligence Scale-Third Edition (WAIS-III) suggests that practicing clinical psychologists and graduate students make item-level scoring errors that affect IQ, index, and subtest scores. Studies have been limited in that Full-Scale IQ (FSIQ) and examiner administration, recording, and scoring tasks have not been systematically varied. In this study, graduate student participants score a high (FSIQ = 112) and low (FSIQ = 85) IQ record form in one of two stimulus conditions: digitized film clips (N = 13) or partially completed record forms (N = 11). Results demonstrate that examiners are less accurate in the high IQ condition, and that recording examinee responses from scoring video clips results in more scoring errors. Obtained FSIQs are significantly higher than criterion IQ scores in the high IQ condition (8.46 for video condition, 2.55 for record form condition). Self-reported proficiency in WAIS-III administration and scoring is positively related to number of scoring errors.     

Mitochondrial DNA marker EST00083 is not associated with high vs. average IQ in a German sample

In a recent report in this journal (Plomin & Petrill, 1997), a mitochondrial DNA marker (EST00083) yielded significant associations with high vs. low IQ in two population-based samples of children in the U.S. The present study tested this allelic association for German adults with high vs. average IQ scores. The high IQ adults (N=47) were members of Mensa, an organization whose membership criterion is an IQ score above 130. Their EST00083 allelic frequencies were compared to the allelic frequencies for a control group of adults (N=77) whose IQ scores were less than 110 as estimated from short-term memory and speed-of information-processing tests. Although the differences between the two studies are considerable, the present results do not provide support for the hypothesis that EST00083 is associated with high IQ.