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61.
Objectives. Although urban scholarship has come to better understand the dynamics of black political incorporation in the United States, to date scant empirical attention has been paid to an important element of minority representation in local politics—the rise of black mayors. The present study addresses this gap in the extant literature. Methods. We analyze incidences of black mayoralties by fitting standard pooled and random effects probit models to a panel of 309 cities observed between 1971 and 2000. Results. Although cities' racial profiles are strongly associated with the incidence of black mayoralties, black representation on city council, black educational attainment, and reformed governments increase the odds of black mayoral emergence. On the other hand, southern location continues to depress the rise of black mayoralties, as do partisan elections, particularly in cities where no racial group constitutes a majority. Conclusions. Although our results partially confirm extant research on the diffusion of black mayoralties in American urban politics, they also call into question conventional wisdom. Our study emphasizes the need for more large‐N studies of minority representation in urban politics and provides suggestions for how the independent effects of black mayors on municipal policy outcomes might subsequently be analyzed empirically.  相似文献   
62.
Findings are presented from an ecologically grounded, longitudinal study of 206 urban, ethnic minority adolescents that used hierarchical linear modeling to examine: (1) individual trajectories of change in adolescents' perceptions of general and closest same‐sex friendship quality from middle to late adolescence; (2) the effects of gender and ethnicity on these trajectories of change; and (3) the relative influence of adolescents' perceptions of individual‐level (i.e., self‐esteem) and contextual‐level (i.e., family relationships and school climate) variables on change over time in perceptions of friendship quality. Findings indicated that adolescents' perceptions of the quality of friendships improved from middle to late adolescence. Boys reported sharper increases over time than girls in their perceptions of the quality of their closest, same‐sex friendships. Furthermore, perceptions of contextual level variables (i.e., family relationships, teacher/student relations, and student/student relations) were significantly associated with change over time in perceptions of general and/or closest same‐sex friendship quality.  相似文献   
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This article reviews the literature concerning the treatment of juvenile sex offenders, an area that has only recently begun to receive attention by researchers. This review considers the types and modalities of treatment methods available as well as the research supporting their efficacy. Special issues for therapists who work with juvenile sex offenders are also discussed. This review found that although there is a wide variety of treatment techniques available to treat juvenile sex offenders, very little research has been done to validate their efficacy. The need for controlled systematic research is noted.  相似文献   
65.
This investigation examined the relationship between gender, psychopathology and self-perception. The sample consisted of 24 boys and 24 girls involved in psychotherapy. Self-perception was measured using The Self-Perception Profile (Harter, 1985). Results indicated that boys and girls both reported relatively high levels of self-esteem. It was found, however, that the various components of self-perception were strongly interrelated for girls and not for boys. Furthermore, girls did not appear to value those competencies which they possessed while holding in high regard those that they felt they lacked. From these results, it was concluded that self-concept in girls is more tenuously constructed.  相似文献   
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Despite the growing importance of public management reform aroundthe world, relatively little scholarship evaluates the contributionsof public management to government performance, that is, tothe character and consequences of service provision by publicagencies. One study (Hill and Lynn 2005) evaluated over eighthundred American empirical studies that address issues of publicmanagement effectiveness in a wide variety of fields, subfields,and disciplines. In this article we employ the analytic frameworkof Hill and Lynn—a polycentric "logic of governance"—toevaluate 193 research articles published in English that usenon-American, or what we will term international, empiricalevidence. Our evaluation reveals more similarities in Americanand non-American public management research, and in the determinantsof government performance, than one might expect, given thedistinctiveness of the American politico-administrative system.These similarities may be deceptive, however. Internationalinvestigators exhibit somewhat different modeling strategies,tending, for example, to favor more linear managerialist hypotheses—changesin structure lead to changes outcomes, for example—thanAmerican research, which is more concerned with intragovernmentalcomplexities. The fact that the use of a polycentric logic ofgovernance revealed highly suggestive similarities and differencesin the determinants of performance in public organizations suggeststhe potential value of this kind of analytic strategy in bothsingle investigations and in meta-analyses of public managementreform.  相似文献   
68.
To examine the implications of fathers' occupational conditions (i.e., income, work hours, shift work, pressure, workplace racism, and underemployment) for family members' psychological adjustment, home interviews were conducted with fathers, mothers, and two adolescent offspring in each of 218 Mexican American families. Results underscored the importance of acculturation as a moderator. Fathers' income was negatively associated with depressive symptoms in highly acculturated families but not in less acculturated families. In contrast, fathers' reports of workplace racism were positively associated with depressive symptoms in less acculturated families but not in more acculturated family contexts. These findings were consistent across all 4 family members, suggesting that the "long arm" of the jobs held by Mexican American fathers extends to mothers and adolescent offspring.  相似文献   
69.
The purpose of this study was to develop a new measure of incidental behaviors that put college students at increased risk of legal consequences while using alcohol, the Legal Risk Behaviors while using Alcohol (LRBA) scale. Two hundred and twenty one college students who used alcohol were recruited to complete an online study about their use of alcohol, specific behaviors engaged in while using alcohol, and associated consequences. Analyses revealed that the 19-item LRBA consisted of three factors--"Risky Behaviors," "Protective Behaviors," and "Private Settings." Analyses suggested that the LRBA had adequate test-retest reliability and internal consistency. Initial results indicate that the LRBA may be a useful measure to help us better understand what behaviors college student engage in that increase their risk for experiencing a legal encounter.  相似文献   
70.
Mild to moderate skew in errors can substantially impact regression mixture model results; one approach for overcoming this includes transforming the outcome into an ordered categorical variable and using a polytomous regression mixture model. This is effective for retaining differential effects in the population; however, bias in parameter estimates and model fit warrant further examination of this approach at higher levels of skew. The current study used Monte Carlo simulations; 3000 observations were drawn from each of two subpopulations differing in the effect of X on Y. Five hundred simulations were performed in each of the 10 scenarios varying in levels of skew in one or both classes. Model comparison criteria supported the accurate two-class model, preserving the differential effects, while parameter estimates were notably biased. The appropriate number of effects can be captured with this approach but we suggest caution when interpreting the magnitude of the effects.  相似文献   
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