What do effective teachers of inner-city children have in common?

This paper investigates the extent to which variables describing the classroom behavior of teachers and variables describing teachers' backgrounds and training explain differences in the effectiveness of teachers in improving the vocabulary skills of inner-city black children in four elementary grade levels. The results indicate that both types of variables explain significant portions of the variation in student achievement. In other words, teachers' choices of techniques matter; and the characteristics of teachers provide some information about their effectiveness. However, the pattern of results indicates that great care must be taken in interpreting individual coefficients. The paper concludes with an interpretation of the results and with suggestions for new directions for research on teaching that follow from this interpretation.     

Race differences in middle class lifestyle: The role of home ownership

This paper examines race differences in two aspects of “middle class” lifestyle: home ownership and net worth. Home ownership indicates stability; and for older persons net worth is an important part of economic status. Data from the NLS studies of older men are analyzed. The major findings are: (1) while whites at any earnings level are very likely to own homes by ages 50–64, only at relatively high earning levels do blacks begin to approach the home ownership rates of whites; (b) the net worth of blacks is substantially lower than that of whites after adjusting for variables in a standard status attainment model; and (c) however, among home owners the race difference as well as effects of other variables are much smaller than for renters. This is attributed to forced saving through home ownership. The paper concludes with a discussion of possible sources of low home ownership rates and low net worth of blacks and the implication of these findings for the study of middle class status.     

Individuals v. states: The correlates of Human Rights Committee rulings, 1979-2007

This paper examines the outcomes of individual abuse claims filed against states under the First Optional Protocol to the International Covenant on Civil and Political Rights, as decided by the Human Rights Committee (HRC). Results from selection models that account for a country’s initial decision to join the Optional Protocol and an individual’s subsequent decision to file a complaint under it show that the substantive nature of complaints were more determinative of HRC outcomes than were country-level characteristics. Claims relating to due process rights, civil liberties, and political freedoms most often resulted in violations, whereas claims pertaining to discrimination, suffrage rights, and the rights of women and children were much less successful. Only two country-level characteristics robustly affected HRC outcomes, net of rights claims: democratizing countries were found in violation at higher rates than were other countries, while violation rates declined as a function of aggregate wealth.     

The rescission of behaviors: Inconsistent responses in adolescent sexuality data

In longitudinal survey research, certain questions can be rescinded illogically. For instance, respondents who at Time 1 report having had sexual intercourse may at Time 2 report never having done so. This paper reports measurement techniques and analyses of these types of inconsistencies from an ongoing longitudinal adolescent sexuality project. Inconsistencies in intercourse, masturbation, and other sexual behaviors are reported and compared to rates from other studies and other less sensitive behaviors within the same study. Three conclusions are presented: (1) inconsistencies should be considered a natural part of any longitudinal survey process and should be incorporated into the response model; (2) inconsistency rates in these particular data support the contention that adolescent sexuality data of appropriate quality for analytical purposes can be obtained; and (3) inconsistency rates in fact contain substantive information concerning the processes under consideration.     

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.     

Some models of response uncertainty for panel analysis

Data of L. M. Wiggins from three-wave panels, each with a single dichotomous response, illustrate the use of models with response probabilities that vary over occasions or over individuals, or neither, or both, with a “no interaction” combination of the two being specified for the last case, which can also be derived from the Rasch measurement model. Models more complicated than these, allowing for changes in individual parameters (interaction of occasions and persons) or serial dependence of responses are considered when the Rasch-type model does not adequately describe the data.     

Legitimation, Geographical Scale, and Organizational Density: Regional Patterns of Foundings of American Automobile Producers, 1885–1981

Do organizational processes of legitimation and competition operate within different boundaries corresponding to different geographical levels of analysis? Following Hannan et al. (1995), this analysis explores the possibility that legitimation operates on a broader geographical scale (less constrained by political and physical barriers) than does competition. We test the argument by examining founding rates of American automobile producers from 1885 to 1981, within the framework of density-dependent modeling. Our findings suggest that within the United States, legitimation operated on a national scale while competition proceeded primarily on a regional level. Comparison with automobile producer populations in Europe yields differences in application and interpretation of the theory.     

Feeding the pipeline: Gender,occupational plans,and college major selection

In this article, we analyze gender differences in college major selection for respondents to the Education Longitudinal Study (2002–2006), focusing on educational pathways through college that lead to science, engineering, or doctoral-track medicine occupations and to non-doctoral track clinical and health sciences occupations. We show that gender differences in college major selection remain substantial, even for a cohort in which rates of enrollment in postsecondary education are more than ten percent higher for young women than for young men. Consistent with other recent research, we demonstrate that neither gender differences in work–family goals nor in academic preparation explain a substantial portion of these differences. However, the occupational plans of high school seniors are strong predictors of initial college major selection, a finding that is revealed only when occupational plans are measured with sufficient detail, here by using the verbatim responses of students. We also find that the association between occupational plans and college major selection is not attributable to work–family orientation or academic preparation. Finally, we find gender differences in the associations between occupational plans and college major selection that are consistent with prior research on STEM attrition, as well as with the claim that attrition also affects the selection of majors that are gateways into doctoral-track medicine. We discuss the implications of the predictive power of occupational plans formed in adolescence for understanding sex segregation and for policies intended to create a gender-balanced STEM and doctoral-level medical workforce.     

Aggregate male and female labor force participation functions: An analysis of structural differences, 1947–1977

The hypothesis that the structure of the forces that affect male and female labor force participation rates are distinct has been corroborated in numerous studies using microdata. This paper examines the validity of this structural distinctiveness hypothesis in the context of aggregate, time series data on male and female labor force participation in the post-World War II United States. Standard economic and sociological theories are used to specify sex-specific participation functions that contain indexes of the sex-specific general opportunity for employment, the sex-specific rates of participation in the armed forces and in postsecondary schooling institutions, the average real wage rate, the average number of hours worked, and the fertility rate. It is found that the female rate is more responsive than the male rate to the general employment opportunities and average hours indexes, but less responsive to the wage rate. Also, the female rate responds positively to the armed forces participation and college enrollment rates, whereas the male rate is negatively related to these indexes. However, no evidence is found for another component of the structural distinctiveness hypothesis, namely, that the fertility rate bears a consistent negative relationship to the female participation rate. While this relationship may have held during the early postwar years, it seems to have been substantially attentuated since the early 1960s. Prospects for convergence of the male and female participation functions are evaluated. Although current social trends suggest that the female function eventually will resemble more closely the male funtion, it is concluded that substantial sex differences are likely to persist for at least another decade. Implications of this for the structure of the labor force participation functions used in macroeconometric forecasting models are discussed.     

Pay premiums for economic sector and race: A decomposition

This paper examines two issues concerning a dual economy theory of labor markets. Using data from the older men's file of the National Longitudinal Surveys, I first investigate the degree to which differences in rates of pay among economic sectors (competitive, monopoly, public) are accounted for by sector differences in (1) human capital composition, (2) unionization, (3) occupational skill requirements, and (4) other factors producing an ability and willingness to pay high wages. The results of this decomposition suggest that the greater ability and willingness to pay high wages and the higher levels of unionization are the primary factors producing a monopoly sector pay premium. Second, I examine how racial differences in pay vary across sector and perform an analogous decomposition of these differences. In contrast to several previous studies, the relative disadvantages of black men were found to be somewhat greater in the competitive sector than in the monopoly sector.     

Donations and dependence: Individual contributor strategies in house elections

Despite the importance of individual contributors to financing federal candidates, past work has largely neglected this crucial financial constituency in favor of research on corporate and trade political action committees (PACs). By contrast, in this study I offer the first analysis of aggregate contributions from the population of individual contributors to House candidates. Using an original big dataset constructed from over fifteen million Federal Election Commission (FEC) disclosure records, I identify individual contributors (rather than contributions) and trace the variation in their strategies across types of House candidates. I distinguish between frequent donors, who are theorized to have more contact with members of Congress, versus infrequent donors in these elections. I find evidence that the character of aggregate donations from repeat donors is more access-oriented even while controlling for other salient candidate characteristics. Funds from infrequent donors, in contrast, appear more ideologically motivated. By also examining the percentage of funds that House candidates receive from repeat donors, I show that the fundraising coalitions of candidates may reproduce reliance on more access-oriented, repeat donors despite the influx of dollars from infrequent donors. I suggest that my findings provide a persuasive case for re-evaluating the diversity of roles individual contributors play in the campaign finance system, and for systematically analyzing variation in contributor strategies.     

Panel data and models of change: A comparison of first difference and conventional two-wave models

The method of first differences as an approach to modeling change is described and it is compared to more conventional two-wave panel models. Substantial advantages are found to the first-difference approach, especially if there are unmeasured, unchanging predictor variables in the model. It is also argued that there are substantial problems in the interpretation of results from the conventional two-wave models. Some of the analytic results are illustrated with a number of applications to the area of stressful life events.     

Education and religion: Individual, congregational, and cross-level interaction effects on biblical literalism

Using ideas from cultural and organizational theory, I examine the interplay of individual and congregation-level educational attainment on biblical literalism. Data on 387 congregations and 100,009 worshippers (US Congregational Life Survey, 2001) are used to test hypotheses. Results indicate that the effects of congregational education and individual educational attainment are among the largest effects in models. This study is the first to show that regardless of an individual’s own education, affirmations of biblical literalism are less likely when persons with higher education dominate a congregation. This finding brings into relief the important role of social context in persons’ belief in biblical literalism. Additionally, congregational education amplifies the influence of individual education on biblical literalism such that the gap in belief between college/non-college education individuals widens in high education congregations. This finding suggests that high education persons more deeply absorb the influence of a more educated congregational context.     

Educational differences in health risks and illness over the life course: A test of cumulative disadvantage theory

This study tests the cumulative disadvantage hypothesis by examining the age-varying relationships between education, health risks, and disease onset and survival duration. Results based on 20 years of longitudinal data suggest that education is related to both the individual and accumulated number of behavioral, social, and economic health-risks, which in turn, are related to increasing educational differences in rates of disease incidence and survival. For hypertension, behavioral risks fully account for education’s negative effect on disease onset whereas educational differences in survival are best explained by the accumulation of social and economic risks. For heart attack, a combination of behavioral, social, and economic risks mediate the association between education and incidence, but neither the individual nor accumulated health-risks could account for education’s positive effect on surviving after a heart attack. Similar findings for diabetes and stroke are also discussed.     

“最大多数人”与“最少受惠者”——两种正义观的伦理基础及其模糊性

在边沁、密尔的功利主义与罗尔斯正义论两种立场迥异的分配正义观中,两个社会群体分别成为各自伦理判断的基础,即最大多数人与最少受惠者。然而,两者都未能确定无疑地界定谁是真正的最大多数人或最少受惠者,导致两种分配伦理原则在实践中面临诸多困难。功利主义用最大多数人替代全体人,致使其界定的最大幸福含义模糊不清,据此,政府在制定公共政策时很难准确判断特定的受惠对象,最终以牺牲少数人的利益换取最大多数人的幸福。罗尔斯则将正义原则建立在最少受惠者利益基础之上,克服了功利主义最大多数人的不确定性,以收入指标确定最少受惠者地位,但对个人标准的表述却又过于具体与特殊,以至于无法给出一个清晰的标准,同样给决策者以模棱两可的信息。由于两种正义观的理论矛盾并非通过其自身的理论修正可以克服,因而需要在冲突中相互吸收与融合才能得以消解。     

Career mobility as a Poisson process: An application to the career dynamics of men and women in the U.S. Office of the Comptroller of the Currency from the Civil War to World War II

Poisson process models of upward mobility in job rewards are developed and estimated using event history techniques on data from one organization over a period of 80 years. The models developed permit the inclusion of independent variables which vary over a person's career and are used to analyze differences in the mobility of men and women. The main findings are (1) the career dynamics of men and women are similar in general form, both best described by a segmented, heterogeneous, and nonstationary Poisson process; (2) parametric differences exist between the models for men and women in terms of how certain independent variables affect the rate of arrival of opportunities to move up in the reward hierarchy and in terms of how others affect the rate of being given or taking advantage of such opportunities; and (3) both men and women appear to benefit by being in competition with one another for available opportunities. Theoretical interpretations of these results are discussed in relation to differences in the flow of opportunities to locations in the reward hierarchy occupied predominantly by men versus those occupied predominantly by women.     

Dynamic models and attainment in the workplace

The two most marked trends in recent stratification studies are: (1) the shift away from a statical approach to attainment and toward a dynamical representation of achievement, and (2) the shift away from the assumption that achievement is largely a matter of individual characteristics, and toward the view that achievement is the outcome of an employer-employee exchange of productive resources for earnings and status. This paper forges a link between these parallel trends by elaborating on previous formulations of dynamic models of achievement and applying the results to the analysis of earnings attainment in an internal labor market. The modeling section of the paper joins within a single framework the growing interest in ascertaining how a given structure of opportunity shapes achievement and in determining the different points in the career line at which individual background and resource variables impact attainment. Special attention is devoted to the problems facing researchers who wish to bring a dynamic conceptualization of achievement to cross-sectional or otherwise deficient data. Although the empirical application of the various models is largely meant to be illustrative, it is of interest in its own right because it goes substantially beyond previous efforts in this area.     

对集合概念及其相关问题的再认识

本文主要阐述了下列问题 :集合概念与非集合概念的区别 ,集合概念与普遍概念的关系 ,集合体与个体、完全体与部件、类与分子这三对关系的区别。     

Explaining discrepant findings in cross-sectional and longitudinal analyses: An application to U.S. homicide rates

Cross-sectional studies often reach different conclusions regarding the association between key explanatory variables and outcomes than those of longitudinal approaches. This study considers possible explanations for discrepant findings using a decomposition approach with panel data on 404 U.S. counties for the period 1970–1999. The analysis establishes that there are important differences in the effects of independent variables on homicide rates across counties as opposed to within counties over time. Explanations offered for these discrepancies are that variables may have differing temporary (flow) and permanent (stock) influences on outcomes and possible omitted variable bias. The findings highlight the importance of distinguishing among possible stock and flow effects and are significant not only for the study of crime but also for other social phenomena.