Randomized experiments as the bronze standard

In this paper, the strengths and weakneses of randomized field experiments are discussed. Although it seems to be common knowledge that random assignment balances experimental and control groups on all confounders, other features of randomized field experiments are somewhat less appreciated. These include the role of random assignment in statistical inference and representations of the mechanisms by which the treatment has its impact. Randomized experiments also have important limitations and are subject to the fidelity with which they are implemented. In the end, randomized field experiments are still the best way to estimate causal effects, but are a considerable distance from perfection.     

Canadian compulsory community treatment laws: recent reforms

This paper addresses the principles underlying compulsory community treatment (CCT) and discusses the different provisions in Canada's twelve jurisdictions. Comparisons with different models of CCT in other countries are also drawn. CCT is not only intended to reduce relapses it is also a "least restrictive" alternative to in-patient detention. Seven of the twelve Canadian mental health acts allow conditional leave from hospital. Two jurisdictions provide community treatment orders, but require two or three previous in-patient admissions. Criteria for CCT, in most jurisdictions, includes that there is a "likelihood of significant mental or physical deterioration". The requirement for previous hospitalization for CCT in Canada, unlike other countries, precludes CCT for use with first episode patients. Some jurisdictions require consent for CCT. Most jurisdictions explicitly state that the services necessary for the CCT conditions must be available.     

Constructing Joseph Fredericks: competing narratives of a child sex murderer

Joseph Fredericks--one of Canada's most notorious sex offenders--was defined through the institutions that dealt with him from his infancy to his death to the inquest held after his death. In this paper, we locate in historical context and compare the different narratives that were constructed of his life in each of these institutional settings from unwanted child to 'mental defective' to psychiatric offender to criminal recidivist to victim to iconic sexual predator. We show that each of these narratives claimed to capture the essence of Fredericks in terms of what were his core characteristics and what remedies were necessary for the problems he posed only to be superseded by new narratives based on different assumptions. Finally, we show how one of these conceptions of Frederick's essence influenced a shift in Canadian public policy for sex offenders toward the greater emphasis on community protection characteristic of public policy in the United States.     

Factors related to suicide in New York state prisons

OBJECTIVE: Examine factors related to prison suicides to aid prevention. METHOD: Review the mental health records of all 76 suicides that occurred between 1993 and 2001 in New York State Department of Correctional Services (NYSDOCS) prisons that had some contact with mental health services during their incarceration. (This represented 84% of all NYSDOCS suicides.) Extract data from the psychological autopsies for a sample of 40 of these suicides. RESULTS: Of the suicide victims with some mental health contact, 95% had a substance abuse history, 70% displayed agitation or anxiety prior to the suicide, and 48% had a behavioral change. Common stressors preceding the suicide were inmate-to-inmate conflict (50%), recent disciplinary action (42%), fear (40%), physical illness (42%), and adverse information (65%) such as loss of good time or disruption of family/friendship relationships in the community. Forty-one percent had received a mental health service within 3 days of the suicide. Compared to the about 7200 inmates actively receiving mental health services in state prison, African-Americans and patients with a Major Mood (Bi-polar or Major Depression) were under-represented. Adjustment Disorder, Schizophrenia, and Personality Disorder diagnoses were over-represented. Suicide victims were more likely to have been incarcerated for a violent crime. CONCLUSION: Mental illness, anxiety/agitation, behavior change, stressors, history of substance abuse, and non-African-American were important risk factors.     

The Effects of Prior Workplace Behavior on Subsequent Sexual Harassment Judgments

A dual processing model of sexual harassment judgments predicted that the behavior of a complainant in a prior case would influence evaluations in an unrelated subsequent case. In the first of two experimental scenarios depicting social-sexual conduct at work, the female complainant's conduct was manipulated to be aggressive, submissive, ambiguous, or neutral. Half of the participants were asked to reflect upon the first scenario after reading it and before answering responsibility questions. The other half simply reviewed the scenario and answered the questions. When the complainant acted aggressively, her behavior in the first scenario caused men who reflected on the fact pattern to find less evidence of harassment. Most interestingly, an aggressive complainant observed in the first scenario caused participants (especially women) to rate lower the likelihood that a neutral complainant in a second independent case was the victim of gender discrimination. Across cases, men found less evidence of harassment than did women.     

Investigation of elderly deaths in nursing homes by the medical examiner over a year

Despite death being one of the most common reasons for discharge from a nursing home, fewer than 1% of nursing home resident deaths are autopsied. To evaluate our role as medical examiner in nursing home deaths, we conducted a retrospective review of all decedents in Jefferson County, Alabama, for the year 2001. Death certificate data indicate that 995 deaths occurred in nursing homes in Jefferson County in 2001. Of those 995 deaths, 119 (12%) were reported to the Jefferson County Coroner/Medical Examiner Office. Jurisdiction was accepted in 5 cases in which the circumstances already made clear that the death was a nonnatural event. In the remaining 96% of nursing home deaths reported to the medical examiner, the statements of the reporting person were taken to be true concerning the expected nature of the death. An independent scene evaluation was provided by a police officer or paramedic in 82% of the cases reported to the medical examiner's office. Elderly individuals, as a group, are expected to die, but the death of a particular elder may or may not be expected. In our jurisdiction, only 12% of all nursing home deaths are reported to our office, and only 4% of reported deaths are actively investigated. Actively investigating each nursing home death would overwhelm the resources currently available to our office. We advocate the study and development of criteria to aid in determining whether the death of an individual elder is sudden and unexpected.     

The EDNAP mitochondrial DNA population database (EMPOP) collaborative exercises: organisation, results and perspectives

This paper presents an overview of the organisation and the results of the collaborative exercises (CE) of the European DNA Profiling (EDNAP) Group's mitochondrial DNA population database project (EMPOP). The aim of the collaborative exercises was to determine whether uniformity of mtDNA sequencing results could be achieved among different laboratories. These were asked to sequence either the complete mtDNA control region or the two hypervariable regions HVI (16024-16365) and HVII (73-340) from DNA extracts, buccal swabs or bloodstains, proceeding in accordance with the protocol and strategies used in each individual laboratory. The results of the collaborative exercises were employed to identify possible sources of errors that could arise during the analysis and interpretation of mtDNA profiles. These findings were taken as a basis to tentatively make suitable arrangements for the construction of a high quality mtDNA database. One hundred fifty mtDNA profiles were submitted to the evaluating laboratory, and disaccording profiles were classified into four groups corresponding to the source of error: clerical errors, sample mix-ups, contaminations and discrepancies with respect to the mtDNA nomenclature. Overall, 14 disaccording haplotypes (16 individual errors) were observed. The errors included 10 clerical errors, 3 interpretation problems, 2 cases of sample mix-up and 1 case of point heteroplasmic mixture, where the 2 sequencing reactions brought inconsistent base calls. This corresponds to an error rate of 10.7% in a virtual mtDNA database consisting of the collaborative exercise results. However, this estimate is still conservative compared to conclusions drawn by authors of meanwhile numerous publications critically reviewing published mtDNA population databases. Our results and earlier published concerns strongly emphasize the need for appropriate safety regulations when mtDNA profiles are compiled for database purposes in order to accomplish the high standard required for mtDNA databases that are used in the forensic context.     

Believing is seeing? Investigating the perceived accuracy of criminal psychological profiles

This study investigated whether perceptions of criminal psychological profiles are influenced by the identity of the profile's author. Police officers were given a profile they were told was written by either a professional profiler or by an unspecified author. When judged in relation to the actual perpetrator of the crime, police officers tended to perceive greater accuracy in a profile when it was labeled as authored by a professional profiler independent of the actual content of the profile. But officers' judgments of the usefulness of the profile were not affected by knowledge of who wrote the profile. Explanations for this result focus on the ambiguous nature of criminal profiles and how this ambiguity enhances the likelihood that beliefs about the validity of profiling can color perceptions of the content of the profile.