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1.
It is widely recognized that urbanization can affect ecological conditions in aquatic systems; numerous studies have identified impervious surface cover as an indicator of urban intensity and as an index of development at the watershed, regional, and national scale. Watershed percent imperviousness, a commonly understood urban metric was used as the basis for a generalized watershed disturbance metric that, when applied in conjunction with weighted percent agriculture and percent grassland, predicted stream biotic conditions based on Ephemeroptera, Plecoptera, and Trichoptera (EPT) richness across a wide range of environmental settings. Data were collected in streams that encompassed a wide range of watershed area (4.4–1,714 km2), precipitation (38–204 cm/yr), and elevation (31–2,024 m) conditions. Nevertheless the simple 3-landcover disturbance metric accounted for 58% of the variability in EPT richness based on the 261 nationwide sites. On the metropolitan area scale, relationship r 2 ranged from 0.04 to 0.74. At disturbance values <15 the EPT rate of decrease was ∼10 times greater than at disturbance values >15. Future work may incorporate watershed management practices within the disturbance metric, further increasing the management applicability of the relation. Such relations developed on a regional or metropolitan area scale are likely to be stronger than geographically generalized models; as found in these EPT richness relations. However, broad spatial models are able to provide much needed understanding in unmonitored areas and provide initial guidance for stream potential.  相似文献   

2.
Environmental issues remain problematic, but a growing body of work shows that trust is a solution. Yet, studies offer competing arguments on what type of trust promotes cooperation, generalized versus institutional trust. Further, previous studies use a variety of measures to define environmental cooperation, including membership in environmental groups, recycling garbage, and purchasing green products. These measures are unalike but often considered as analogous. I argue that environmental measures fit within one of two frameworks: first-order cooperation or second-order cooperation. To address these discrepancies, I use 2000 and 2010 General Social Survey waves to determine how generalized trust and institutional trust differently affect first- and second-order environmental cooperation. The findings indicate that generalized trust is strongly linked to both forms of environmental cooperation, but the relationship of institutional trust on first- and second-order cooperation is inconsistent.  相似文献   

3.
Affirmative action remains a contentious topic in both research and practice. While advocates suggest that such action is necessary to overcome demographic imbalances in the labor market, some research shows that these policies can prompt undesirable employee reactions that negate their value. While positive discrimination (i.e., recruiting or promoting solely based on a protected characteristic) remains illegal in the United Kingdom, organizations have increasingly begun adopting positive action measures (i.e., measures aimed at alleviating disadvantage or under-representation based on protected characteristics). However, there is little research looking at how these policies specifically affect employee attitudes or how different organizational rationales for positive action might moderate these effects. This lack of research is even more notable in the UK context. In two experimental studies of UK professionals (N = 353) we find that perceived organizational justice explained the relationship between positive action and affective commitment / turnover intention. However, evidence supporting the effect of organizational rationale was limited.  相似文献   

4.
We present a meta-analytic review of the literature on sex differences in the trust game (174 effect sizes) and the related gift-exchange game (35 effect sizes). Based on parental investment theory and social role theory we expected men to be more trusting and women to be more trustworthy. Indeed, men were more trusting in the trust game (g = 0.22), yet we found no significant sex difference in trust in the gift-exchange game (g = 0.15). Regarding trustworthiness, we found no significant sex difference in the trust game (g = −0.04), and we found men, not women, to be more trustworthy in the gift-exchange game (g = 0.33). These results suggest that men send more money than women do when their money is going to be multiplied, thereby creating an efficiency gain. This so-called “male multiplier effect” may be explained by a stronger psychological tendency in men to acquire resources.  相似文献   

5.
This study investigated measurement invariance by gender among commonly used teen dating violence (TDV), sexual harassment, and bullying measures. Data were collected from one cohort of seventh‐grade middle school students (N = 754) from four schools. Using structural equation modeling, exploratory and confirmatory factor analyses assessed measurement models and tested measurement invariance by gender for aggression measures. Analyses invoked baseline data only. Physical and psychological TDV perpetration measures achieved strict measurement invariance, while bullying perpetration demonstrated partial strict invariance. Electronic TDV and sexual harassment perpetration achieved metric/scalar invariance. Study findings lend validation to prior and future studies using these measures with similar populations. Future research should increase attention to measurement development, refinement, and testing among study measures.  相似文献   

6.
Although previous literature has revealed the predictive effect of trust on economic development, whether the level of China’s market economy development predicts changes in trust across birth cohorts remains unknown. Study 1, a cross-temporal meta-analysis of 82 studies (N = 34,151), indicated that Chinese college students’ scores on the Interpersonal Trust Scale (ITS) decreased significantly from 1998 to 2011, and that the decline in interpersonal trust across birth cohorts was negatively associated with and predicated by the marketization index. Study 2 found that the levels of marketization of different provinces in China were negatively associated with the levels of trust in these provinces. The present research first proposed that the marketization process in China may predict or correlate with a trend of declining trust, and then demonstrated the validity of the proposal based on both longitudinal and cross-sectional evidence.  相似文献   

7.
Scholars argue that trust is fundamental to maintaining a healthy society, and consequently, recent evidence that trust may be declining in the United States has generated an interest in the determinants of trust. According to the social capital literature, particularly the work of Robert Putnam, involvement in voluntary associations influences the development of generalized trust. One way in which organizational participation is thought to foster trust is through creating more diverse, or bridging, social networks. However, scarcely any research has empirically examined this mechanism. Using data from the Social Capital Community Benchmark Survey, I test whether network diversity (ties to persons from different social backgrounds) accounts for some of the influence of organizational involvement on trust. The results suggest that the influence of involvement in multiple associations on trust is largely mediated by its influence on network diversity. In addition, while recent research observes that some predictors of trust vary by race and ethnicity, I find no differences in these relationships across non‐Hispanic white, African American, and Latino respondents.  相似文献   

8.
The possibility of resolving the tension between trust as a psychological condition and trust as a general organizing principle depends on assumptions about the convergence of expressed and perceived trust relations. In empirical organizational research these assumptions are frequently left implicit and only rarely modeled directly. Using data that we have collected on trust relations within the top management team of a multiunit industrial group we specify and estimate multivariate exponential random graph models (ERGMs) that reveal important differences in the structural logics underlying networks of expressed and perceived trust relations. Results confirm that trust induces awareness and produces expectations of reciprocity – features that are consistent with the view of trust as a general organizing principle. Results also show that networks of perceived trust relations are characterized by tendencies toward reciprocity and generalized giving of trust. When multivariate network effects are introduced, however, expressed trust relations no longer show a significant tendency toward reciprocation. Interpreted together these results suggest that: (i) the distribution of expressed and perceived trust relations differs; (ii) expressed trust relations in organizations are more hierarchical than are perceived trust relations, and (iii) expressed and perceived trust relations need to be modeled jointly. These findings suggest caution in the adoption and interpretation of trust only as a general organizing principle, and suggest that psychological mechanisms also play an important role in the making and breaking of trust relations within organizations.  相似文献   

9.
Working collaboratively with two state associations and their member (nonprofit) agencies providing out-of-home care to children and youth, University researchers conducted a multi-site project to examine whether there were any differences in individual child-level outcomes between children placed in residential group care and those placed in foster. The study employed a quasi-experimental repeated measures design, with data collected at a minimum of two intervals (at intake and 3-month follow-up) and at subsequent intervals of 6 and 12 months for children remaining in care. Samples for analyses were drawn from 1082 youth in either residential group care (n = 903) or foster care (n = 179), in one of 37 agency sites across two southeastern states, who participated in a broader evaluation project. The average ages of participating youth in residential and foster care were 13.97 (SD = 2.43) and 13.65 (SD = 2.73), respectively. Based on his or her score on the Children's Global Assessment Scale (CGAS) at intake, each participant was also assigned to the low functioning group (n = 526; 53.1%), the borderline group (n = 232; 23.4%), or the high functioning group (n = 232; 23.4%). Analyses confirmed that youth in foster care tended to have higher levels of general functioning at baseline than did youth placed in group care. However, the degree to which youth progressed in care on measures of general functioning and mental and behavioral health problems did not differ based on placement setting; youth in residential group care settings progressed at the same rate as youth in community-based settings, regardless of their level of functioning at intake. The only exception to this pattern was in regard to anxiety; there was an observable, but non-significant trend of youth in foster care reporting decreases in anxiety levels, while those in group care reported increased anxiety.  相似文献   

10.
Several studies suggest a positive relationship between social capital and generalized trust. Employing a network understanding of social capital (Lin, 2001), this study questions which aspects of social networks may be linked with generalized trust. It investigates whether the diversity of social networks and the socio-economic status of one’s contacts are linked with generalized trust in the Norwegian, egalitarian context. The analyses examine these patterns in relationship to both kin and non-kin contacts. The study employs data from the first Norwegian survey that includes the position generator (PG). The empirical analyses show that extensive social networks are indeed linked to higher levels of generalized trust, but that this relationship is limited to non-kin contacts. Concerning the link between network resources and generalized trust, there is evidence of a more general association with generalized trust that holds when considering both kin and non-kin contacts. These results are a first step in developing a more nuanced discussion of the mechanisms associated with generalized trust and highlight the importance of employing measures that account for the homophily of networks when investigating their relationship to trust.  相似文献   

11.
Employing a 2 (accepting crisis accountability vs denying crisis accountability) x 2 (high vs low information substantiality) x 2 (high vs low participation) online experiment (N = 293), this study examines how different transparency strategies influence public anger and trust in a Chinese police crisis context, offering insights on government social media crisis communication. In general, transparency is crucial for Chinese local governments, especially police agencies, in managing crises on social media. Reporting organizational crisis accountability, delivering sufficient and evidence-based messages, and enabling public discussion on social media are three transparency strategies that can help minimize public anger and rebuild public trust. Results suggest the positive effects of delivering messages in crisis situations by using transparency. Furthermore, the study points out that police organizations in China should consider the possibility of information overload and unexpectedly low overall expectations for government transparency among Chinese publics.  相似文献   

12.
People can (to some extent) detect trustworthiness from the facial features of social partners, and populations which underperform at this task are at a greater risk of abuse. Here we focus on situations in which adolescents make a decision whether to trust an unknown adult. Adolescents aged 13–18 (N = 540) played a trust game, in which they made decisions whether to trust unknown adults based on their picture. We show that trusting decisions become increasingly accurate with age, from a small effect size at age 13 to an effect size 2.5 times larger at age 18. We consider the implications of this result for the development of prosociality and the possible mechanisms underlying the development of trustworthiness detection from faces.  相似文献   

13.
The purpose of this scoping review was to identify promising factors that underpin effective health promotion collaborations, measurement approaches, and evaluation practices. Measurement approaches and evaluation practices employed in 14 English-language articles published between January 2001 and October 2015 were considered. Data extraction included research design, health focus of the collaboration, factors being evaluated, how factors were conceptualized and measured, and outcome measures. Studies were methodologically diverse employing either quantitative methods (n = 9), mixed methods (n = 4), or qualitative methods (n = 1).In total, these 14 studies examined 113 factors, 88 of which were only measured once. Leadership was the most commonly studied factor but was conceptualized differently across studies. Six factors were significantly associated with outcome measures across studies; leadership (n = 3), gender (n = 2), trust (n = 2), length of the collaboration (n = 2), budget (n = 2) and changes in organizational model (n = 2). Since factors were often conceptualized differently, drawing conclusions about their impact on collaborative functioning remains difficult. The use of reliable and validated tools would strengthen evaluation of health promotion collaborations and would support and enhance the effectiveness of collaboration.  相似文献   

14.
Research on measurement error in network data has typically focused on missing data. We embed missing data, which we term false negative nodes and edges, in a broader classification of error scenarios. This includes false positive nodes and edges and falsely aggregated and disaggregated nodes. We simulate these six measurement errors using an online social network and a publication citation network, reporting their effects on four node-level measures – degree centrality, clustering coefficient, network constraint, and eigenvector centrality. Our results suggest that in networks with more positively-skewed degree distributions and higher average clustering, these measures tend to be less resistant to most forms of measurement error. In addition, we argue that the sensitivity of a given measure to an error scenario depends on the idiosyncracies of the measure's calculation, thus revising the general claim from past research that the more ‘global’ a measure, the less resistant it is to measurement error. Finally, we anchor our discussion to commonly-used networks in past research that suffer from these different forms of measurement error and make recommendations for correction strategies.  相似文献   

15.
Previous studies of parent–child reciprocity have focused either on the long term (generalized exchange over the life course) or on the short term (concurrent exchange in later life). The purpose of this research was to investigate the linkage between both temporal patterns of reciprocity within an integrative conceptual framework. We assessed whether long-term and short-term reciprocity operated as interdependent mechanisms that initially selected and subsequently relieved intergenerational caregiving relationships. We used data from the Asset and Health Dynamics Among the Oldest Old study (AHEAD) provided by frail, single-living parents of at least two children (N = 1010 respondents comprising 3768 parent–child dyads). Fixed-effects conditional logit models estimated between-sibling differences in assistance provided to parents, measured by instrumental help (i.e., assistance with IADLs) and hands-on care (i.e., assistance with ADLs). Key predictors were two measures of financial transfers given to children referring to longer and shorter recall periods. Receiving earlier and current financial transfers increased adult children's propensity to support their parents in later life. The effect of earlier transfers pertained to help rather than care whereas the reverse was true for the effect of current transfers. We found no evidence for a linkage between long-term and short-term reciprocity. Overall, the results indicate that adult children might balance long-term support accounts relative to their siblings, suggesting an intra-generational orientation on equity.  相似文献   

16.
Photovoice is a participatory action research method that empowers participants to photograph their everyday lives as a means of documenting and advocating for their needs; it has rarely been utilized with young people experiencing homelessness. The current study examined the feasibility, accessibility, and preliminary outcomes associated with participation in Asking for Change, a manualized Photovoice intervention, among youth (ages 18–21) staying in a homeless shelter (N = 22). Multiple sources of data, including field observation, standardized pre-post measures, and qualitative exit interviews were collected across two cohorts of Asking for Change. Results suggest the intervention was feasible and highly acceptable to many young people, created new opportunities to connect with young people, and, among those surveyed pre and post intervention (n = 9), was associated with improvements in communication skills, social connectedness, resiliency, and well-being. This article discusses the challenges and benefits inherent in doing this work and outlines a robust research agenda to move this knowledge base forward.  相似文献   

17.
Infants vary in their ability to follow others’ gazes, but it is unclear how these individual differences emerge. We tested whether social motivation levels in early infancy predict later gaze following skills. We longitudinally tracked infants’ (N = 82) gazes and pupil dilation while they observed videos of a woman looking into the camera simulating eye contact (i.e., mutual gaze) and then gazing toward one of two objects, at 2, 4, 6, 8, and 14 months of age. To improve measurement validity, we used confirmatory factor analysis to combine multiple observed measures to index the underlying constructs of social motivation and gaze following. Infants’ social motivation—indexed by their speed of social orienting, duration of mutual gaze, and degree of pupil dilation during mutual gaze—was developmentally stable and positively predicted the development of gaze following—indexed by their proportion of time looking to the target object, first object look difference scores, and first face-to-object saccade difference scores—from 6 to 14 months of age. These findings suggest that infants’ social motivation likely plays a role in the development of gaze following and highlight the use of a multi-measure approach to improve measurement sensitivity and validity in infancy research.  相似文献   

18.
The study of dyadic interaction plays a major role in infancy research. To advance conceptually informed measurement of dyadic interaction and integration across studies, we examined factor structure of individual parents' and infants' measures and dyadic measures from face‐to‐face interactions in two samples of 6‐month‐old infants and their parents: mothers from a demographically heterogeneous sample (= 164), and mothers and fathers (= 156) from a Caucasian middle‐class sample. Results suggested that a) individual and dyadic measures, and parents' and infants' behaviors contribute independent information, b) measures of both valence and process are needed, c) there are context‐general and context‐specific qualities, and d) structure of dyadic interaction is more similar among mother–infant dyads from independent samples than between mother–infant and father–infant dyads within the same sample. Future research should use multiple measures incorporating valence, temporal processes, contextual influences, and behaviors of individual partners along with dyadic measures to adequately assess the quality of dyadic interaction.  相似文献   

19.
Over the past 30 years, we have been witnessing a rise in incivility policing across western but also non-western cities. The term “incivility policing” refers to bans and exclusion aimed at drinking alcohol, begging, loitering, sitting in public, and many other kinds of subcriminal conduct. Scholars have observed an increasing readiness to demand legal “solutions” aimed against these kinds of conduct. In this paper, I review two major strands of scholarship dealing with the origins of these calls: First, a rising punitiveness and a “law and order” mentality, inspired by the Broken windows theory and Zero tolerance policies. Second, privatization of space and the rising influence of private actors over public spaces are discussed with references to the concepts of neoliberalism, revanchism, and the right to the city. The effect of incivility policing on vulnerable groups is examined using the example of homeless people in public space. In the final part, I suggest new factors which could help us understand the rise in incivility policing: These include general trust, everyday trust, and the imaginaries of community.  相似文献   

20.
Increased recognition of the risks associated with gambling has resulted in a greater focus on empirical research to increase the understanding of gambling and design appropriate response strategies. Laboratory studies are a popular mode of research due to their relative ease and lower costs compared to field research; however such studies may be limited in the extent to which results can be generalized to real gambling scenarios. The current research investigated the validity of a laboratory research study using 127 university students (male = 97, mean age = 20.4) investigating the impact of harm-minimisation measures by replicating the study in gambling venues with 124 club patrons (male = 89, mean age = 44.1). The main results and effects of both studies were in the same direction, but fewer significant results were found in the venue study. Venue participants provided much less information in response to survey questions than student participants and were less likely to return follow-up questionnaires. It was concluded that both laboratory and field studies provide valuable contributions to the field, but caution should be taken in interpreting results, and where possible both methodologies should be used to verify conclusions.  相似文献   

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