Meta-Analysis of the Relationship Between Coworker Social Support and Burnout Using a Two-Level Hierarchical Linear Model

2012 ◽  
Vol 34 (8) ◽  
pp. 1062-1063 ◽  
Author(s):  
Rachael Kay-Eccles
Keyword(s):  
Social Support ◽  
Linear Model ◽  
Meta Analysis ◽  
Hierarchical Linear Model ◽  
The Relationship

scholarly journals A review of the effectiveness of operational curtailment for reducing bat fatalities at terrestrial wind farms in North America

PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0256382
Author(s):  
Evan M. Adams ◽  
Julia Gulka ◽  
Kathryn A. Williams
Keyword(s):  
Linear Model ◽  
Meta Analysis ◽  
Wind Farms ◽  
Field Studies ◽  
The United States ◽  
Continuous Variable ◽  
Control Treatment ◽  
Exact Nature ◽  
Non Linear ◽  
The Relationship

Curtailment of turbine operations during low wind conditions has become an operational minimization tactic to reduce bat mortality at terrestrial wind energy facilities. Site-specific studies have demonstrated that bat activity is higher during lower wind speeds and that operational curtailment can effectively reduce fatalities. However, the exact nature of the relationship between curtailment cut-in speed and bat fatality reduction remains unclear. To evaluate the efficacy of differing curtailment regimes in reducing bat fatalities, we examined data from turbine curtailment experiments in the United States and Canada in a meta-analysis framework. We used multiple statistical models to explore possible linear and non-linear relationships between turbine cut-in speed and bat fatality. Because the overall sample size for this meta-analysis was small (n = 36 control-treatment studies from 17 wind farms), we conducted a power analysis to assess the number of control-treatment curtailment studies needed to understand the relationship between fatality reduction and change in cut-in speed. We also identified the characteristics of individual curtailment field studies that may influence their power to detect fatality reductions, and in turn, contribute to future meta-analyses. We found strong evidence that implementing turbine curtailment reduces fatality rates of bats at wind farms; the estimated fatality ratio across all studies was 0.37 (p < 0.001), or a 63% decrease in fatalities. However, the nature of the relationship between the magnitude of treatment and reduction in fatalities was more difficult to assess. Models that represented the response ratio as a continuous variable (e.g., with a linear relationship between the change in cut-in speed and fatalities) and a categorical variable (to allow for possible non-linearity in this relationship) both had substantial support when compared using AICc. The linear model represented the best fit, likely due to model simplicity, but the non-linear model was the most likely without accounting for parsimony and suggested fatality rates decreased when the difference in curtailment cut-in speeds was 2m/s or larger. The power analyses showed that the power to detect effects in the meta-analysis was low if fatality reductions were less than 50%, which suggests that smaller increases in cut-in speed (i.e., between different treatment categories) may not be easily detectable with the current dataset. While curtailment is an effective operational mitigation measure overall, additional well-designed curtailment studies are needed to determine precisely whether higher cut-in speeds can further reduce bat fatalities.

scholarly journals Social Support Benefits Psychological Adjustment of International Students: Evidence From a Meta-Analysis

2019 ◽  
Vol 50 (7) ◽  
pp. 827-847 ◽  
Author(s):  
Michael Bender ◽  
Yvette van Osch ◽  
Willem Sleegers ◽  
Mengyu Ye
Keyword(s):  
Social Support ◽  
International Students ◽  
Psychological Adjustment ◽  
Meta Analysis ◽  
Effect Sizes ◽  
Future Research ◽  
Systematic Assessment ◽  
Growing Body ◽  
Different Types ◽  
The Relationship

A growing body of literature is exploring the link between social support and international students’ psychological adjustment. So far, however, there has been no systematic assessment of the overall relationship, and no indication which types and sources of social support may be most strongly associated with psychological adjustment. Our meta-analysis of 257 effect sizes across 76 studies fills this gap and assesses (a) the magnitude of the overall association between social support and international students’ psychological adjustment, (b) how different types (subjective, objective, and mixed) and sources (host, conational, international, mixed, and unspecified) of social support moderate the relationship between social support and psychological adjustment, and (c) whether the relationship between social support and psychological adjustment holds across different operationalizations of psychological adjustment. We find a positive overall association ( r = .20, 95% confidence interval [CI] = [0.16, 0.23]) between social support and international students’ psychological adjustment. Types and sources of social support matter as well: Subjective social support relates more strongly to psychological adjustment than objective social support. The data revealed that only support from mixed sources (i.e., not distinguishing between internationals, host, or conationals) is associated with a stronger effect of social support than support from conationals or from fellow international students (compared with support from host sources). We find no differences in the relation between social support and positive or negative adjustment. We outline recommendations for future research based on the meta-analysis.

Power Distance Orientation and Employee Help Seeking: Trust in Supervisor as a Mediator

2015 ◽  
Vol 43 (6) ◽  
pp. 1043-1054 ◽  
Author(s):  
Yang Ji ◽  
Erhua Zhou ◽  
Caiyun Li ◽  
Yanling Yan
Keyword(s):  
Linear Model ◽  
Help Seeking ◽  
Negative Impact ◽  
Power Distance ◽  
Hierarchical Linear Model ◽  
Chinese Firms ◽  
Power Distance Orientation ◽  
Model Based ◽  
The Relationship

We explored the mechanism and effect of supervisors' power distance orientation in relation to employee help seeking by way of a hierarchical linear model based on a sample of 311 employees working in 12 Chinese firms. Results indicated that power distance orientation had a significantly negative impact on employees' instrumental and emotional help seeking as well as their trust in the supervisor. Affect-based trust mediated the relationship between power distance orientation and instrumental and emotional help seeking. Further, cognition-based trust mediated the relationship between power distance orientation and instrumental help seeking. Implications for theory and management are discussed.

scholarly journals Examining moderators of the relationship between social support and self-reported PTSD symptoms: A meta-analysis.

2020 ◽  
Author(s):  
Alyson K. Zalta ◽  
Vanessa Tirone ◽  
Daria Orlowska ◽  
Rebecca K. Blais ◽  
Ashton Lofgreen ◽  
...  
Keyword(s):  
Social Support ◽  
Meta Analysis ◽  
Ptsd Symptoms ◽  
The Relationship

scholarly journals The relationship between social support and mental health problems during pregnancy: a systematic review and meta-analysis

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Asres Bedaso ◽  
Jon Adams ◽  
Wenbo Peng ◽  
David Sibbritt
Keyword(s):  
Mental Health ◽  
Social Support ◽  
Systematic Review ◽  
Pregnant Women ◽  
Narrative Analysis ◽  
Mental Health Problems ◽  
Meta Analysis ◽  
Health Problems ◽  
Self Harm ◽  
The Relationship

Abstract Background Pregnancy is a time of profound physical and emotional change as well as an increased risk of mental illness. While strengthening social support is a common recommendation to reduce such mental health risk, no systematic review or meta-analysis has yet examined the relationship between social support and mental problems during pregnancy. Methods The PRISMA checklist was used as a guide to systematically review relevant peer-reviewed literature reporting primary data analyses. PubMed, Psych Info, MIDIRS, SCOPUS, and CINAHL database searches were conducted to retrieve research articles published between the years 2000 to 2019. The Newcastle–Ottawa Scale tool was used for quality appraisal and the meta-analysis was conducted using STATA. The Q and the I2 statistics were used to evaluate heterogeneity. A random-effects model was used to pool estimates. Publication bias was assessed using a funnel plot and Egger’s regression test and adjusted using trim and Fill analysis. Result From the identified 3760 articles, 67 articles with 64,449 pregnant women were part of the current systematic review and meta-analysis. From the total 67 articles, 22 and 45 articles included in the narrative analysis and meta-analysis, respectively. From the total articles included in the narrative analysis, 20 articles reported a significant relationship between low social support and the risk of developing mental health problems (i.e. depression, anxiety, and self-harm) during pregnancy. After adjusting for publication bias, based on the results of the random-effect model, the pooled odds ratio (POR) of low social support was AOR: 1.18 (95% CI: 1.01, 1.41) for studies examining the relationship between low social support and antenatal depression and AOR: 1.97 (95% CI: 1.34, 2.92) for studies examining the relationship between low social support and antenatal anxiety. Conclusion Low social support shows significant associations with the risk of depression, anxiety, and self-harm during pregnancy. Policy-makers and those working on maternity care should consider the development of targeted social support programs with a view to helping reduce mental health problems amongst pregnant women.

scholarly journals How do city-specific factors affect migrant integration in China? A study based on a hierarchical linear model of migrants and cities

PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0244665
Author(s):  
Rumin Zheng ◽  
Lin Mei ◽  
Yanhua Guo ◽  
Shuo Zhen ◽  
Zhanhui Fu
Keyword(s):  
Linear Model ◽  
Industrial Structure ◽  
Negative Impact ◽  
Housing Prices ◽  
Hierarchical Linear Model ◽  
Individual Characteristics ◽  
Political Factors ◽  
Individual Level ◽  
Migrant Integration ◽  
The Relationship

Background Previous studies indicate that migrant integration is associated with migrants’ characteristics as well as restrictions and opportunities in receiving cities. However, the effect of receiving cities and the relationship between migrants and receiving cities have not been fully explored due to the lack of large samples from cities. The objective of this study is to examine the effects of receiving cities alone and their regulating role in the interaction with individual characteristics. Methods Cross-city data on 154,044 Chinese domestic migrants above 15 years old in 289 cities from the 2017 China Migrants Dynamic Survey are used. Migrant integration is assessed by a four-dimensional model proposed by Esser, which is slightly adjusted according to the characteristics of Chinese migrants. A hierarchical linear model is used to measure the proportion of effects of city factors in migrant integration as well as the effects when city factors are considered alone and in interaction with individual factors. Results The individual-level and city-level factors are responsible for 69.81% and 30.19% of the effect on migrant integration, respectively. City political factors do not affect migrant integration directly, and cities with larger sizes and higher wages can directly and significantly improve integration, while higher housing prices will directly inhibit integration. From the cross-level interaction of city and individual, different social, economic and political factors at the city level have an indirect impact on migrant integration by inhibiting or strengthening the effect of individual-level factors on migrant integration. Conclusion This study is one of the first to show the effect of cities and the relationship between receiving cities and migrants on migrant integration by keeping the national context constant. It is necessary to weaken the social and economic privileges associated with a city’s administrative level and reduce the negative impact of cities’ social and economic conditions by implementing city agglomeration, developing advantageous industries and optimizing the industrial structure. It is also essential to improve migrants’ socioeconomic capital through social support, occupation training and contiguous education.

scholarly journals Social Support Benefits Psychological Adjustment of International Students: Evidence from a Meta-Analysis

2019 ◽  
Author(s):  
Michael Bender ◽  
Yvette van Osch ◽  
Willem Sleegers ◽  
Mengyu Ye
Keyword(s):  
Social Support ◽  
International Students ◽  
Psychological Adjustment ◽  
Meta Analysis ◽  
Effect Sizes ◽  
Future Research ◽  
Systematic Assessment ◽  
Growing Body ◽  
Different Types ◽  
The Relationship

A growing body of literature is exploring the link between social support and international students’ psychological adjustment. So far, however, there has been no systematic assessment of the overall relationship, and no indication which types and sources of social support may be most strongly associated with psychological adjustment. Our meta-analysis of 257 effect sizes across 76 studies fills this gap and assesses (1) the magnitude of the overall association between social support and international students’ psychological adjustment, (2) how different types (subjective, objective, and mixed) and sources (host, conational, international, mixed, and unspecified) of social support moderate the relationship between social support and psychological adjustment, and (3) whether the relationship between social support and psychological adjustment holds across different operationalizations of psychological adjustment. We find a positive overall association (r = .20, 95% CI [.16, .23]) between social support and international students’ psychological adjustment. Types and sources of social support matter as well: Subjective social support relates more strongly to psychological adjustment than objective social support. The data revealed that only support from mixed sources (i.e., not distinguishing between internationals, host, or conationals) is associated with a stronger effect of social support than support from conationals or from fellow international students (compared to support from host sources). We find no differences in the relation between social support and positive or negative adjustment. We outline recommendations for future research based on the meta-analysis.

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