Homicide followed by suicide: Los Angeles, 1970-1979

A study of 104 homicide-followed-by-suicide events in Los Angeles during 1970-1979 are reported and compared, in part, to the findings of D.J. West for Wales and England, 1954-1961. Variables discussed are age, ethnicity, sex distribution of both offenders and victims, relationship between them, methods by which victims were killed, alcohol content in victims and offenders, suicide notes, depression, and physical illness.     

A bibliography of suicide notes: 1856-1979.

A bibliography of suicide notes, arranged chronologically, from 1856 to the present (1979) is presented without comment.     

Development, gender equality, and suicide rates

A component of the United Nations Development Programme Human Development Index which measures longevity was negatively associated -.55 with suicide rates in 37 nations for men; the correlation with the suicide sex ratio was also negative (r = -.59). Women's access to social, political, and economic power in a subsample of 26 nations, summarized in the UNDP's Gender Empowerment Measure, was positively correlated with suicide rates (r = .36 for both women and men). UNDP measures of attainment in literacy and income showed no individual relationship with suicide rates. In a multiple regression model, life expectancy was negatively related, and the Gender-related Development index was positively related, to suicide rates.     

Suicide in Texas: a cohort analysis of trends in suicide rates, 1945-1980

Recent clusters of teenage suicides in Texas suburban communities have focused national attention on the rise in teenage suicidal behavior. This study sought to clarify the teenage suicide phenomenon by using a cohort method of data analysis. Beginning with suicide rates for white males aged 15-19 in 1945, suicide rates were calculated and plotted for each 5-year age cohort entering the late teenage years, when suicide risk factors dramatically increase. Our analysis of these cohort patterns confirmed the ever-rising risk factor associated with the ages of 15-19. This trend is consistent with many studies suggesting that teenage suicide is a function of socioeconomic and psychological factors operating across community and national boundaries. In addition, our study revealed that as white males 15-19 years of age in 1945 aged, their suicide rates also increased, confirming earlier findings that the suicide risk factor increases with age. In fact, Texas data for 1980 revealed that older persons, not teenagers, had the highest suicide rates-a finding that confirms other studies' results. Finally, Texas cohort patterns for suicide revealed the recent curvilinearity tendencies of older adult male suicide rates. By 1980 Texas data revealed a bimodal distribution of high suicide risk, with white males in their late 20s and ages 55 and over having the highest rates.     

Certification, accreditation, and quality control in behavior analysis

Implementing quality control measures in the discipline and professional practice of behavior analysis is a challenging, but nevertheless important, step in the evolution of our field. The Association for Behavior Analysis currently seeks to ensure quality in behavior analysis by sponsoring an accreditation program for graduate academic programs and by promoting certification of individual practitioners. The accreditation reviews are conducted by ABA, whereas certification status is awarded by an independent, nonprofit credentialing entity: the Behavior Analyst Certification Board, Inc. Among the challenges that ABA faces as it pursues various quality control measures, particularly in its educational programs, are (a) how extensively should academic programs specify the verbal and nonverbal terminal repertoires in all three branches of behavior analysis (applied, experimental, and conceptual); (b) how extensively should programs that emphasize applied behavior analysis integrate science-based criteria for the evaluation of interventions; and (c) how extensively should programs that emphasize service delivery include training in formal research methodology.     

The social control of behavior control: behavior modification, Individual Rights, and research ethics in America, 1971-1979

In 1971, the U.S. Senate Subcommittee on Constitutional Rights began a three-year study to investigate the federal funding of all research involving behavior modification. During this period, operant programs of behavior change, particularly those implemented in closed institutions, were subjected to specific scrutiny. In this article, I outline a number of scientific and social factors that led to this investigation and discuss the study itself. I show how behavioral scientists, both individually and through their professional organizations, responded to this public scrutiny by (1) self-consciously altering their terminology and techniques; (2) considering the need to more effectively police their professional turf; and (3) confronting issues of ethics and values in their work. Finally, I link this episode to the formation of the National Commission for the Protection of Human Subjects of Biomedical and Behavioral Research, whose recommendations resulted in changes to the ethical regulation of federally funded human subjects research that persist to the present day.     

National differences in intelligence and population rates of suicidal ideation, suicide plans, and attempted suicide

Population rates of suicidal ideation, suicide plans or attempted suicide from three independent multinational epidemiological surveys (the WHO/EURO and WHO SUPRE-MISS studies and a third one) were not significantly associated with national IQ figures. This result conflicts with previous evidence from cross-national studies (by Lester and by Voracek) of a positive ecological correlation between level of national intelligence and rates of completed suicide. Across nations, the indicators for the prevalence of suicidal behavior also lacked close correspondence with suicide rates, which may be due to the higher unreliability of assessing covert suicidal behavior (suicide ideas, thoughts, plans, and, to a lesser extent, also suicide attempts) as compared to suicidal behavior that is indisputably overt (completed suicide). Several alternative explanations for the current nil findings are also discussed.     

Suicide attacks in Israel and suicide rates

In Israel from 1983 to 1999, the frequency and lethality of suicide attacks was negatively associated with the suicide rate.     

Geophysical variables and behavior: LIX. The seasonal variation in suicide rates: three studies

The seasonal variation in suicide in the USA was not more pronounced in 1980 in northern regions but was more clear for married people than for those with other marital statuses. The seasonal variation in suicide was not associated with the gross domestic product of the region.     

Changing age patterns of U.S. male and female suicide rates, 1934-1983

Changes in the age patterns of U.S. male and female suicide rates from 1934 to 1983 are examined, using official suicide data. Among whites, the age patterns of male and female suicide rates have become less concordant since about 1960. In contrast, the age patterns of nonwhite male and female suicide rates have become more concordant since the mid-1950s. A review of sociological theories of suicide identifies problems in accounting for such changes--problems stemming in part from what has been a theoretical emphasis on cross-sectional relations.     

Low income, unemployment, and suicide mortality rates for middle-age persons in Japan

The relationships between age-specific suicide mortality rates and social life factors for all 47 Japanese prefectures in 1980, 1985, and 1990 were assessed by multiple regression analysis after factor analysis on 20 social life indicators. During this period, Japan experienced a secondary oil crisis in 1980-1983 and a bubble economy in 1986-1990. It was concluded that (1) low income was the major determinant which positively affected suicide mortality rate in middle-aged men during a previous 20-yr. period (1970-1990), (2) urbanization was negatively associated with male suicide mortality rates in most of the age classes in the 1980s, (3) unemployment was one of the major determinants of increased suicide mortality rate in middle-age men in the 1980s, and (4) unemployment was the major factor which was inversely associated with suicide mortality rate for elderly women from 1980 to 1990 in Japan.     

An ecological study of community-level correlates of suicide mortality rates in the Flemish region of Belgium, 1996-2005

An ecological study of age-standardized suicide rates in Belgian communities (1996-2005) was conducted using spatial regression techniques. Community characteristics were significantly related to suicide rates. There was mixed support for the social integration perspective: single person households were associated with higher suicide rates, while religious participation was unrelated and both immigration and the presence of non-European inhabitants had a negative impact. Deprivation had a positive relation with suicide. Population density had a negative influence on suicide rates. Areas with older populations had higher suicide risks than expected. A spatial contagion effect of neighboring communities was present for men. In the conclusion, hypotheses are presented on why an aging population could be associated with higher suicide rates in the community.     

The Finno-Ugrian suicide hypothesis: variation in European suicide rates by latitude and longitude

The marked variation regarding the suicide rate in 34 European countries is well described by regressing the national suicide rate on the capital cities' latitudes and on an interaction term of squared latitude multiplied with longitude. The interaction term explains 40.8% and 29.1% of men's and women's suicide rate, respectively, and latitude explains a further significant increment of 10.9% and 10.6% variance of men's and women's suicide rate, respectively. This regression model quantifies the Finno-Ugrian suicide hypothesis of Kondrichin and of Marusic and Farmer. The European countries highest in suicide rate constitute a contiguous, J-shaped belt, spanning from Finland to Austria. This area maps onto the second principal component identified for European gene distribution, representing ancestral adaptation to cold climates and the Uralic language dispersion. Thus, population differences in genetic risk factors may account for the spatial pattern in European suicide rates.     

Vocational behavior and career development, 1979: A review

Selected books and articles published in 1979 are summarized in this review of the literature on vocational behavior and career development. The articles are in journals representing the fields of vocational psychology, sociology, and organizational behavior. The topics covered include: perspectives on work; assessment measures; vocational aspirations-choice; job seeking and recruitment; occupational careers; motivations, needs, and goals; worker adjustment; work and the social structure; and interventions. The paper concludes with observations on literature trends and research needs.     

High rates of paraquat-induced suicide in southern Trinidad.

The suicide rate in Trinidad and Tobago is much greater than that of its English-speaking Caribbean neighbors. Many of these suicides are paraquat induced. This research reviewed the deaths due to suicide in the area with the greatest agricultural activity in Trinidad for 1996 and identified, for further demographic and etiological investigation, cases in which paraquat was ingested as the agent of suicide. Of 48 cases of suicide for the year, 39 (81.3%) were due to paraquat poisoning. The incidence of paraquat-induced suicide was 8.0 per 100,000. Among the males, 47.8% were in the age group 25-34 (p < 0.001), and among the females 50.0% were in the 15-24 age group (p < 0.05). Family-of-origin disputes were the most frequently cited precipitant, followed by marital problems. Individuals of East Indian origin accounted for 89% of the suicide victims (p < 0.001). When compared with suicide by other methods in the country, these findings confirm that paraquat poisoning is a significant means of suicide in Trinidad and that young East Indian individuals are particularly vulnerable.