The “Spiral of Silence” Revisited: A Meta-Analysis on the Relationship Between Perceptions of Opinion Support and Political Opinion Expression

2017 ◽  
Vol 45 (1) ◽  
pp. 3-33 ◽  
Author(s):  
Jörg Matthes ◽  
Johannes Knoll ◽  
Christian von Sikorski
Keyword(s):  
Positive Relationship ◽  
Meta Analysis ◽  
Spiral Of Silence ◽  
Political Opinion ◽  
Climate Perception ◽  
Opinion Expression ◽  
Sample Characteristics ◽  
The Spiral Of Silence ◽  
The Impact ◽  
The Relationship

The key assumption of spiral of silence theory is that opinion climate perceptions affect political opinion expression. We meta-analyzed the strength of this relationship and clarified the impact of theoretically relevant moderators. Sixty-six studies collectively including more than 27,000 participants were located. We observed a significant positive relationship ( r = .10; Zr = .10) between opinion climate and opinion expression. This relationship was not weaker in online as compared with offline opinion expression environments. Also, the relationship did not vary by the number of the targets of opinion expression, the opinion of the targets, the opinion climate characteristics, and the design, measurement, and sample characteristics. The largest silencing effect ( r = .34), however, was observed when participants talk to their family, friends, or neighbors about obtrusive issues. Overall, our findings suggest that the relationship between opinion climate perception and political opinion expression is stronger and more robust than previously thought.

scholarly journals Victimization Experiences and Well-Being in Adulthood: A Systematic Review and Meta-Analysis

2020 ◽  
Vol 35 (6) ◽  
pp. 783-814
Author(s):  
Célia Ferreira ◽  
Eunice Magalhães ◽  
Carla Antunes ◽  
Cláudia Camilo
Keyword(s):  
Systematic Review ◽  
Literature Review ◽  
Meta Analysis ◽  
Well Being ◽  
Future Research ◽  
Inclusion Criteria ◽  
Methodological Issues ◽  
Sample Characteristics ◽  
The Impact ◽  
The Relationship

Scientific research has explored the impact of violence during adulthood on psychopathology. Fewer efforts have been made from a positive theoretical framework, and no systematic evidence has been provided. This manuscript describes a literature review and meta-analysis on the relationship between victimization experiences and well-being in adulthood. A literature review was performed, and 27 studies met the inclusion criteria for the systematic review 16 for the meta-analysis. The meta-analysis yielded a medium and significant overall effect size (r = −0.309, p < .001), which indicated that greater victimization experiences partly explain lower well-being outcomes. A set of theoretical and methodological issues are discussed, specifically considering the conceptualization of victimization and well-being as well as the studies design, sample characteristics, measures, and data analysis. Derived from this integrative discussion, some recommendations are also provided for future research.

Appendectomy Does Not Increase the Risk of Future Emergence of Parkinson’s Disease: A Meta-analysis

2021 ◽  
pp. 000313482198903
Author(s):  
Mitsuru Ishizuka ◽  
Norisuke Shibuya ◽  
Kazutoshi Takagi ◽  
Hiroyuki Hachiya ◽  
Kazuma Tago ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Random Effects Models ◽  
Significant Difference ◽  
The Cochrane Library ◽  
The Impact ◽  
The Relationship ◽  
Observation Period

Objective To explore the impact of appendectomy history on emergence of Parkinson’s disease (PD). Background Although there are several studies to investigate the relationship between appendectomy history and emergence of PD, the results are still controversial. Methods We performed a comprehensive electronic search of the literature (the Cochrane Library, PubMed, and the Web of Science) up to April 2020 to identify studies that had employed databases allowing comparison of emergence of PD between patients with and those without appendectomy history. To integrate the impact of appendectomy history on emergence of PD, a meta-analysis was performed using random-effects models to calculate the risk ratio (RR) and 95% confidence interval (CI) for the selected studies, and heterogeneity was analyzed using I2 statistics. Results Four studies involving a total of 6 080 710 patients were included in this meta-analysis. Among 1 470 613 patients with appendectomy history, 1845 (.13%) had emergences of PD during the observation period, whereas among 4 610 097 patients without appendectomy history, 6743 (.15%) had emergences of PD during the observation period. These results revealed that patients with appendectomy history and without appendectomy had almost the same emergence of PD (RR, 1.02; 95% CI, .87-1.20; P = .83; I2 = 87%). Conclusion This meta-analysis has demonstrated that there was no significant difference in emergence of PD between patients with and those without appendectomy history.

scholarly journals Meta-Analysis of the Relationship Between Ethnicity, Obesity, and Type 2 Diabetes of Adults in Urban Populations of Central America

2016 ◽  
Vol 5 (3) ◽  
pp. 274
Author(s):  
William G Wuenstel ◽  
James A. Johnson ◽  
James Humphries ◽  
Cheryl Samuel
Keyword(s):  
Type 2 Diabetes ◽  
Relative Risk ◽  
Odds Ratio ◽  
Meta Analysis ◽  
Central American ◽  
Significance Level ◽  
Study Participants ◽  
The Impact ◽  
The Relationship

<table width="593" border="1" cellspacing="0" cellpadding="0"><tbody><tr><td rowspan="2" valign="top" width="387">The purpose of this meta-analysis was to examine the impact of ethnicity and obesity as it relates to Type-2 Diabetes (T2D) in specific Central American countries. A meta-analysis was conducted to determine the association of ethnicity, obesity, and T2D.  Four studies that qualified for inclusion were identified by searching MEDLINE and PubMed databases. The studies on the association of ethnicity and T2D had a combined population resulted in 265,858 study participants. Two studies on the association of obesity and T2D had 197,899 participants. An analysis of the data was conducted utilizing the relative risk ration, odds ratio, and forest plots. The comparison of the relative risk of T2D across ethnic categories by studies range for Blacks was 1.59 to 2.74, Asians was 1.43 to 2.08, and Hispanics .92 to 2.91.  The ethnic difference in the prevalence of diabetes was almost two-fold higher in all ethnic groups than among the Caucasians with a significance level of 95%. A comparison of relative risk of T2D across weight categories was significantly higher among those with a diagnosed of diabetes in all reported areas. The odds ratio was very close to the risk ratio in both ethnicity and obesity to the development of T2D. The meta-analysis findings documented that an association does exist between ethnicity and obesity to the development of type 2 diabetes.</td><td width="0" height="85"> </td></tr><tr><td width="0" height="82"> </td></tr></tbody></table>

scholarly journals The Impact of Organizational Learning Capability on Product Innovation Performance: Evidence from the Turkish Manufacturing Sector

2016 ◽  
Vol 6 (1) ◽  
pp. 70-84 ◽  
Author(s):  
Özlem Yaşar Uğurlu ◽  
Mustafa Kurt
Keyword(s):  
Organizational Learning ◽  
Empirical Data ◽  
Product Innovation ◽  
Positive Relationship ◽  
Manufacturing Sector ◽  
Innovation Performance ◽  
Learning Capability ◽  
The Impact ◽  
The Relationship

This study aims to examine the effect of organizational learning capability on product innovation performance in the manufacturing sector using empirical data. A survey was conducted with 120 firms that were on the list of Top 1000 Firms of Turkey and registered with the Istanbul Chamber of Industry, to examine the relationship between the dimensions of organizational learning capability and the dimensions of product innovation performance. The findings of the study indicate a positive relationship between organizational learning capability and product innovation performance.

EXPRESS: How Marketer Actions Influence Persuasion Knowledge: Meta-Analytic Evidence of a Non-Linear Relationship

2022 ◽  
pp. 074391562210761
Author(s):  
Martin Eisend ◽  
Farid Tarrahi
Keyword(s):  
Meta Analysis ◽  
Well Being ◽  
Policy Implications ◽  
Knowledge Development ◽  
Societal Implications ◽  
Consumer Decision Making ◽  
Persuasion Knowledge ◽  
Advertising Spending ◽  
The Impact ◽  
The Relationship

Persuasion knowledge development leads to better coping with marketplace persuasion, better consumer decision-making, and adds to consumer well-being. While significant knowledge exists on the impact that individual factors (e.g., age) and cues (e.g., sponsorship disclosure messages) have on consumers’ persuasion knowledge development, little is known about the influence of marketer actions, such as advertising spending. This is surprising, as marketer activities provide a major source of information for consumers’ persuasion knowledge learning and practice and can theoretically either support or hinder persuasion knowledge development. We develop several explanations for various types of relationships between advertising spending and persuasion knowledge and test these relationships by means of a meta-analysis of the persuasion knowledge literature based on 140 papers with 162 distinctive datasets that address persuasion knowledge measurements. We find that increasing advertising spending also increases consumers’ persuasion knowledge. The relationship follows an inverted-U curve, and, at a certain level of advertising spending, persuasion knowledge begins to decrease. The findings have theoretical and societal implications and, depending on the level of advertising investment, policy implications with the ultimate aim of ensuring consumer well-being and protecting consumer groups with low levels of persuasion knowledge.

scholarly journals The Relationship between Coronary Artery Wall Shear Strain and Plaque Morphology: A Systematic Review and Meta-Analysis

Diagnostics ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 91 ◽  
Author(s):  
Artan Bajraktari ◽  
Ibadete Bytyçi ◽  
Michael Y. Henein
Keyword(s):  
Coronary Artery ◽  
Shear Strain ◽  
Meta Analysis ◽  
Calcium Score ◽  
Necrotic Core ◽  
Plaque Burden ◽  
Plaque Morphology ◽  
Wall Shear ◽  
The Impact ◽  
The Relationship

Background and Aim: Arterial wall shear strain (WSS) has been proposed to impact the features of atherosclerotic plaques. The aim of this meta-analysis was to assess the impact of different types of WSS on plaque features in coronary artery disease (CAD). Methods: We systematically searched PubMed-Medline, EMBASE, Scopus, Google Scholar, and the Cochrane Central Registry, from 1989 up to January 2020 and selected clinical trials and observational studies which assessed the relationship between WSS, measured by intravascular ultrasound (IVUS), and plaque morphology in patients with CAD. Results: In four studies, a total of 72 patients with 13,098 coronary artery segments were recruited, with mean age 57.5 ± 9.5 years. The pooled analysis showed that low WSS was associated with larger baseline lumen area (WMD 2.55 [1.34 to 3.76, p < 0.001]), smaller plaque area (WMD −1.16 [−1.84 to −0.49, p = 0.0007]), lower plaque burden (WMD −12.7 [−21.4 to −4.01, p = 0.04]), and lower necrotic core area (WMD −0.32 [−0.78 to 0.14, p = 0.04]). Low WSS also had smaller fibrous area (WMD −0.79 [−1.88 to 0.30, p = 0.02]) and smaller fibro-fatty area (WMD −0.22 [−0.57 to 0.13, p = 0.02]), compared with high WSS, but the dense calcium score was similar between the two groups (WMD −0.17 [−0.47 to 0.13, p = 0.26]). No differences were found between intermediate and high WSS. Conclusions: High WSS is associated with signs of plaque instability such as higher necrotic core, higher calcium score, and higher plaque burden compared with low WSS. These findings highlight the role of IVUS in assessing plaque vulnerability.

Enhancing Occupational Performance through Occupationally Embedded Exercise: A Meta-Analytic Review

1997 ◽  
Vol 17 (1) ◽  
pp. 25-47 ◽  
Author(s):  
Keh-Chung Lin ◽  
Ching-Yi Wu ◽  
Linda Tickle-Degnen ◽  
Wendy Coster
Keyword(s):  
Occupational Therapy ◽  
Meta Analysis ◽  
Empirical Studies ◽  
Theory And Practice ◽  
Occupational Performance ◽  
Nelson Model ◽  
Theoretical Inquiry ◽  
Analytic Review ◽  
The Impact ◽  
The Relationship

Occupation or purposeful activity is the unique historical root of occupational therapy and is thought to enhance health and prevent disability. Nelson's (1988) recent conceptual framework of occupation consolidates the beliefs of occupational therapy. One focus for empirical research and theoretical inquiry is the relationship between occupational form and occupational performance. This article critically analyzes this important part of the Nelson model and meta-analytically summarizes findings of the empirical studies that have examined this relationship. Results of the meta-analysis showed a substantial relationship of occupational form to occupational performance (weighted mean effect size r=0.50) in support of the proposition of the Nelson model that occupation can be analyzed in terms of the relationship between occupational form and occupational performance. The impact of potential moderators on the study findings is explored. Implications for occupational therapy theory and practice are discussed.

Emotional brand attachment: a factor in customer-bank relationships

2016 ◽  
Vol 34 (2) ◽  
pp. 136-150 ◽  
Author(s):  
Shalom Levy ◽  
Hayiel Hino
Keyword(s):  
Factor Analysis ◽  
Conceptual Framework ◽  
Structural Equation ◽  
Positive Relationship ◽  
Service Providers ◽  
Equation Modeling ◽  
Emotional Attachment ◽  
Content Type ◽  
The Impact ◽  
The Relationship

Purpose – The purpose of this paper is to evaluate the relationship between customers’ emotional attachment toward bank service providers and bank loyalty. In particular, the study examines the impact of the emotional attachment factor while treating established effecting variables by employing a new conceptual framework that integrates these variables. Design/methodology/approach – The study employs data collected from a survey involving 436 participants. The study employs Exploratory Factor Analysis and Confirmatory Factor Analysis methods following a path analysis method and structural equation modeling for testing research hypotheses. Findings – The empirical results support the claim that the conceptual framework applied in this study better explains the relationship between customers’ emotional attachment toward bank service providers and bank loyalty. Specifically, the findings show a significant, direct and positive relationship between the customer’s emotional attachment and bank loyalty; an indirect positive relationship also exists through the connection of customer satisfaction. The study distinguishes between two integrated pathways consumers possibly follow when making decisions about services: the conscious decision-making process path and the emotional process path. Practical implications – The paper provides managerial and planning implications to bank service providers who seek to achieve excellent performance and a positive brand personality, thus maintaining long-lasting relationships with their customers. Originality/value – The study is among the few empirical works to specifically examine the impact of customers’ emotional attachment on bank loyalty and contributes to the available literature in that it suggests a systematic conceptual framework that evaluates the impact of key factors on bank loyalty.

The impact of service innovation on firm performance: a meta-analysis

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Changli Feng ◽  
Ruize Ma ◽  
Lin Jiang
Keyword(s):  
Firm Performance ◽  
Positive Impact ◽  
Meta Analysis ◽  
Service Innovation ◽  
Future Research ◽  
Quantitative Review ◽  
Content Type ◽  
And Performance ◽  
The Impact ◽  
The Relationship

PurposeWith the rise of service economy, many companies are attempting to gain a competitive advantage through service innovation. However, the existing research has not drawn consistent conclusions about the relationship between service innovation and firm performance. Hence, the purpose of this paper is to provide a quantitative review on the service innovation-performance relationship based on research findings reported in the extant literature.Design/methodology/approachStudies from 46 peer-reviewed articles were sampled and analyzed. A meta-analytic approach was adopted to conduct a quantitative review on the relationship between service innovation and firm performance, and the effects of any potential moderators were further explored.FindingsThe results found that service innovation has a significant positive impact on firm performance. Additionally, the relationship between service innovation and firm performance is influenced by measurement moderators (economic region and performance measurement), and contextual moderators (firm type, innovation type, customer factors and attitudes toward risk).Originality/valueThe meta-analysis has been used to explore the relationship between service innovation and firm performance, and the findings have contributed to the literature on service innovation, as well as providing future research directions.

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