The relationship between Mean Cost Rating (MCR) and Kendall's rank correlation coefficient tau

Mean Cost Rating (MRC) has been used extensively in criminology to measure the power of prediction instruments. This paper shows that MCR is closely related to Kendall's rank correlation coefficient tau and demonstrates, by means of this relationship, how the significance of MCR can be tested. An example of its calculation is given.     

Don't be cheeky': Requests, directives and being a child

The study described in this article collected naturalistic data from six children aged eight to nine talking with their relatives and friends. The article focuses on directives and requests used by the children and their interlocutors in informal conversations. It proposes that – as previous research has found – some requests and directives are distinctive because of the children's social status as children , but also suggests that, since 'being a child' is a relational and socially negotiated role, its significance varies across different interactions.     

Measures of occupational status in a special population

Previous research has shown that indirect measures of occupational status such as the Duncan Socioeconomic Index (SEI) are more valid than direct measures of occupational prestige, such as those developed by the National Opinion Research Center and by Treiman, for analyses of social mobility. The Professional, Technical, and Kindred (PTK) occupations available for the SEI are a biased sample of all PTK occupations. Do findings on the validity of the SEI pertaining to the general population hold for special populations, such as college graduates? Confirmatory factor analysis comparing the validities of four measures of occupational SES—the SEI, a 1960 counterpart of the SEI developed by Siegel and based on all Census occupations, the NORC prestige scale, and the Treiman international prestige scale—showed that the indirect measure developed by Siegel was clearly more valid than the other three measures. Since these findings indicate that the predictors in a regression equation are more valid than the criterion, there is some question as to what the criterion should really be.     

Comparing measures of homicide trends: Methodological and substantive differences in the Vital Statistics and Uniform Crime Report time series (1933–1975)

Several Uniform Crime Reports (FBI) and Vital Statistics (NCHS) homicide time series for the United States, 1933–1975, are compared with respect to (a) definitions and collection procedures used; (b) differences in estimating procedures; and (c) substantive differences that result from use of either series. Among the findings from this investigation are that: (1) the sampling procedures employed by the NCHS appear to be superior to those of the FBI; (2) the FBI time series most commonly employed by researchers is discontinuous prior to 1958 due to revision procedures which were instituted at that time. Analyses over time periods which began prior to this year should employ a more accurate FBI time series which is published by the Office of Management and Budget (1973). (3) The specific time period under study may lead to different substantive conclusions with different indicators; (4) the results of statistical analyses of structural equation models contained herein indicate that while the difference is not generally statistically significant, the deterrent effect of execution is consistently estimated to be greater with the Vital Statistics series. This finding has important policy implications if estimates of the number of lives saved by executing prisoners are projected and utilized by policy makers. (5) Neither series indicates serious problems of autocorrelation of disturbances with the exogenous variables employed here; and (6) use of either series for the period after 1949 appears to produce the same substantive results.     

Canonical analysis and optimal criterion validity scaling

This article suggests methods for forming linear composites which will have either optimum (maximum) criterion validity or an optimum ratio of valid to reliable variance. These methods may be of interest to researchers whose data contain substantial systematic but invalid components. These techniques are formally related to canonical correlation analysis, and the output from standard canonical correlation computer programs can be directly used in forming the composites.     

Ethnic and class factors affecting mental health clinic service

Service delivery by a mental health clinic to clients from an older suburban catchment area containing both lower and middle class blacks and whites was studied. The epidemiologic method was employed, relating service delivery to the characteristics of the various population groups within the catchment. The findings indicate that low service rates for blacks were not related to ethnicity alone, but to the combination of black ethnicity and low social status; however, middle class blacks and middle class whites who entered treatment received similar service. Poor blacks had higher admission rates than poor whites with similar need indicators. In continued treatment, poor blacks received lowest service rates while minority status poor whites living in a predominantly black area received highest service rates. Social class mediated black service utilization. Severity of illness, interacting with social class and minority status mediated white service utilization. Outreach is suggested not only for poor blacks but also for poor whites, especially those living in areas in which they represent an ethnic minority.     

Comprehensive model for child services: Parent education follow through program

One program which provides comprehensive child and family services is the Parent Education Follow Through Program. Developed at the University of Florida in 1968 by Dr. Ira J. Gordon and moved to the University of North Carolina in 1977, this program is currently implemented in ten diverse communities across the nation, both rural and urban. Using a theoretical ecological framework, the program focuses on the relationship between the home and the school with attention also given to other systems present in the community as well as at the state and national levels. The major features of the program include the following: (1) comprehensive services (social, psychological, and medical); (2) weekly home visitations by paid paraprofessionals during which home learning activities stressing specific parental teaching behaviors are delivered; and (3) parental participation of various kinds including volunteer, employee and decision-maker. The data that have been collected to measure these program areas have shown that the model has had a positive impact upon children's achievement as well as upon their families, the school, and the community.     

Child care: A mirror of human history

Child care in any period of history can be understood best as a reflection of society itself during that era. When children are treated cruelly or indifferently we are likely to find that people of all ages and most classes were treated similarly. When greater benevolence seems to be the order of the day children are more highly regarded and efforts are made to develop systems of care which are kinder and which will lead children more gently toward useful adulthood. The study of the development of child care in this country documents this assertion. From the Elizabethan Poor Law, transplanted to these shores by the earliest settlers, through efforts to save souls as well as bodies, to current disagreements about the relative efficacy of institutionalization and foster care we see the reflections of our society's view of itself. When saving money becomes more important than saving the distressed, services suffer. Only by becoming aware of this entanglement of child care with societal attitudes in general can those who work with children learn to exert that influence on developments in their field now largely in the hands of persons who have neither knowledge nor interest in the subject.     

The effects of labor market segmentation on economic resources in retirement

Longitudinal data from the Panel Study of Income Dynamics are used to explore the determinants of economic resource levels among recently retired workers. Three income determination models are used to examine significant predictors of economic status using a broad measure of economic well being that includes both retirement income and wealth. Findings indicate that variables used in status attainment, human capital, and labor market segmentation models explain substantial amounts of variance. Applying these models to the longitudinal data provide suggestive information about the crucial life-span characteristics and circumstances that determine economic status as workers enter retirement.     

Organizational boundaries and upward job shifts

Recent research has examined the role of organizations in the stratification system and the functioning of stratification systems in organizations. In this analysis, we examine the implications of organizational boundaries for upward job changes within and across organizations. To perform our analysis, we utilize a nonstationary, modified Markov model that allows consideration of individual and job heterogeneity. The data are life histories of a sample of U.S. males between the ages of 30 and 39. Our results indicate that organizational boundaries create two kinds of resources: (1) general resources, and (2) organization-specific resources. General resources have a positive effect on upward movement within and across organizational boundaries. Organization-specific resources have a positive effect on upward movement within organizational boundaries, and a negative effect on upward movement across organizational boundaries—a situation of great benefit to organizations.