scholarly journals Linking personality and cognition: a meta-analysis

2018 ◽  
Vol 373 (1756) ◽  
pp. 20170282 ◽  
Author(s):  
Liam R. Dougherty ◽  
Lauren M. Guillette
Keyword(s):  
Effect Size ◽  
Cognitive Abilities ◽  
Meta Analysis ◽  
Empirical Studies ◽  
Empirical Work ◽  
Animal Personality ◽  
Initial Learning ◽  
Negative Effect ◽  
Taxonomic Grouping ◽  
The Relationship

In the past decade, several conceptual papers have linked variation in animal personality to variation in cognition, and recent years have seen a flood of empirical studies testing this link. However, these results have not been synthesized in a quantitative way. Here, we systematically search the literature and conduct a phylogenetically controlled meta-analysis of empirical papers that have tested the relationship between animal personality (exploration, boldness, activity, aggression and sociability) and cognition (initial learning/reversal speed, number of correct choices/errors after standard training). We find evidence for a small but significant relationship between variation in personality and variation in learning across species in the absolute scale; however, the direction of this relationship is highly variable and when both positive and negative effect sizes are considered, the average effect size does not differ significantly from zero. Importantly, this variation among studies is not explained by differences in personality or learning measure, or taxonomic grouping. Further, these results do not support current hypotheses suggesting that that fast-explorers are fast-learners or that slow-explorers perform better on tests of reversal learning. Rather, we find evidence that bold animals are faster learners, but only when boldness is measured in response to a predator (or simulated predator) and not when boldness is measured by exposure to a novel object (or novel food). Further, although only a small sub-sample of papers reported results separately for males and females, sex explained a significant amount of variation in effect size. These results, therefore, suggest that, while personality and learning are indeed related across a range of species, the direction of this relationship is highly variable. Thus further empirical work is needed to determine whether there are important moderators of this relationship. This article is part of the theme issue ‘Causes and consequences of individual differences in cognitive abilities’.

The Relationship Between Exposure to Community Violence and Psychological Distress Among Adolescents: A Meta-Analysis

2003 ◽  
Vol 18 (3) ◽  
pp. 335-352 ◽  
Author(s):  
W. Cody Wilson ◽  
Beth Spenciner Rosenthal
Keyword(s):  
Psychological Distress ◽  
Community Violence ◽  
Effect Size ◽  
Quantitative Methods ◽  
Psychological Symptoms ◽  
Meta Analysis ◽  
Empirical Studies ◽  
Traumatic Experiences ◽  
Exposure To Community Violence ◽  
The Relationship

This article is concerned with the “size of the relationship” between exposure to chronic community violence and psychological symptoms among adolescents. It analyzes all relevant empirical studies in the published literature during the last 20 years; uses quantitative methods to summarize findings; and estimates the effect size using meta-analysis. The 37 independent samples (n = 17,322) were coded on 19 categories, including size and characteristics of sample, and characteristics of the independent and dependent variables. Findings indicate that there is a positive correlation between exposure to community violence and psychological distress; and that the effect size (r = .25) of this relationship is low-medium. The estimated effect size of the relationship points to new issues such as the characteristics of the psychosocial dynamics of resilience in the face of exposure to community violence and how exposure to community violence interacts with other potentially traumatic experiences in the producing of psychological distress.

scholarly journals Is deterrence approach effective in combating tax evasion? A meta-analysis

2019 ◽  
Vol 17 (2) ◽  
pp. 93-113 ◽  
Author(s):  
Muh Dularif ◽  
Sutrisno T. ◽  
Nurkholis ◽  
Erwin Saraswati
Keyword(s):  
Cultural Values ◽  
Effect Size ◽  
Tax Evasion ◽  
Meta Analysis ◽  
Empirical Studies ◽  
Income Level ◽  
Analysis Method ◽  
Tax Rate ◽  
The Impact ◽  
The Relationship

The purpose of this paper is to present the results of a meta-analysis of the relationship between determinant factors and tax evasion based on deterrence approach. Using the meta-analysis method, each statistical result of empirical studies is converted into r-pearson as standardized effect size, and then synthesized into a mean effect size in order to increase power and to resolve uncertainty. Theoretically, increasing audit, tax rate and tax penalty will decrease tax evasion. However, the results show that only tax rate has a significant impact on tax evasion. Synthesizing totally 478 outcomes from articles published between 1978 and 2018, there is a robust conclusion that decreasing tax rate is an effective tool in combating tax evasion. On the other hand, audit and penalty are not significant in influencing tax evasion. In addition, the results of heterogeneity analysis suggest that national culture and income level of the country are useful in explaining the impact of audit, tax rate and tax penalty on tax evasion. These findings should be of interest to policymakers. First, instead of sacrificing more resources in conducting audit or imposing more penalty, tax authorities should consider setting the tax rate as low as possible to diminish tax evasion. Second, considering that culture and income level influence the impact of audit and penalty on tax evasion, policymakers should consider national cultural values and income level condition when designing audit techniques and setting penalty structures.

The Relationship Between Immorality and Cleansing

2018 ◽  
Vol 49 (5) ◽  
pp. 303-309 ◽  
Author(s):  
Jedidiah Siev ◽  
Shelby E. Zuckerman ◽  
Joseph J. Siev
Keyword(s):  
Effect Size ◽  
Meta Analysis ◽  
Weighted Mean ◽  
The Relationship

Abstract. In a widely publicized set of studies, participants who were primed to consider unethical events preferred cleansing products more than did those primed with ethical events ( Zhong & Liljenquist, 2006 ). This tendency to respond to moral threat with physical cleansing is known as the Macbeth Effect. Several subsequent efforts, however, did not replicate this relationship. The present manuscript reports the results of a meta-analysis of 15 studies testing this relationship. The weighted mean effect size was small across all studies (g = 0.17, 95% CI [0.04, 0.31]), and nonsignificant across studies conducted in independent laboratories (g = 0.07, 95% CI [−0.04, 0.19]). We conclude that there is little evidence for an overall Macbeth Effect; however, there may be a Macbeth Effect under certain conditions.

scholarly journals Can We Compare Effect Size of Spatial Genetic Structure Between Studies and Species Using Moran Eigenvector Maps?

2021 ◽  
Vol 9 ◽  
Author(s):  
Celia Hein ◽  
Hossam E. Abdel Moniem ◽  
Helene H. Wagner
Keyword(s):  
Genetic Structure ◽  
Effect Size ◽  
Stationary Process ◽  
Isolation By Distance ◽  
Spatial Genetic Structure ◽  
Meta Analysis ◽  
Empirical Studies ◽  
Sampling Locations ◽  
Number Of Individuals ◽  
Moran Eigenvector Maps

As the field of landscape genetics is progressing toward comparative empirical studies and meta-analysis, it is important to know how best to compare the strength of spatial genetic structure between studies and species. Moran’s Eigenvector Maps are a promising method that does not make an assumption of isolation-by-distance in a homogeneous environment but can discern cryptic structure that may result from multiple processes operating in heterogeneous landscapes. MEMgene uses spatial filters from Moran’s Eigenvector Maps as predictor variables to explain variation in a genetic distance matrix, and it returns adjusted R2 as a measure of the amount of genetic variation that is spatially structured. However, it is unclear whether, and under which conditions, this value can be used to compare the degree of spatial genetic structure (effect size) between studies. This study addresses the fundamental question of comparability at two levels: between independent studies (meta-analysis mode) and between species sampled at the same locations (comparative mode). We used published datasets containing 9,900 haploid, biallelic, neutral loci simulated on a quasi-continuous, square landscape under four demographic scenarios (island model, isolation-by-distance, expansion from one or two refugia). We varied the genetic resolution (number of individuals and loci) and the number of random sampling locations. We considered two measures of effect size, the MEMgene adjusted R2 and multivariate Moran’s I, which is related to Moran’s Eigenvector Maps. Both metrics were highly sensitive to the number of locations, even when using standardized effect sizes, SES, and the number of individuals sampled per location, but not to the number of loci. In comparative mode, using the same Moran Eigenvector Maps for all species, even those with missing values at some sampling locations, reduced bias due to the number of locations under isolation-by-distance (stationary process) but increased it under expansion from one or two refugia (non-stationary process). More robust measures of effect size need to be developed before the strength of spatial genetic structure can be accurately compared, either in a meta-analysis of independent empirical studies or within a comparative, multispecies landscape genetic study.

A meta-analysis of the variables related to turnover intention among IT personnel

Kybernetes ◽  
2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ahmet Hakan Özkan
Keyword(s):  
Job Satisfaction ◽  
Organizational Commitment ◽  
Effect Size ◽  
Turnover Intention ◽  
Meta Analysis ◽  
It Industry ◽  
Data Set ◽  
Content Type ◽  
It Personnel ◽  
The Relationship

PurposeThis study aims to investigate the relationships between job satisfaction, organizational commitment and turnover intention of information technology (IT) personnel.Design/methodology/approach3,844 studies which are published between 1998 and 2019 are screened on ScienceDirect, Scopus and ProQuest databases. 10,523 subjects formed the first data set regarding the relationship between job satisfaction and turnover intention, 7,903 subjects formed the second data set regarding the relationship between organizational commitment and turnover intention, 843 subjects formed the third data set regarding the relationship between empowerment and turnover intention, and 3,430 subjects formed the fourth data set regarding the relationship between job satisfaction and organizational commitment.FindingsResults showed that the effect size of the relationship between job satisfaction and organizational commitment is the strongest (r = 0.59). The effect size of the relationship between job satisfaction and turnover intention (r = −0.50), and the effect size of the relationship between organizational commitment and turnover intention r = −0.51) were also large. But the effect size of the relationship between empowerment and turnover intention was medium (r = −0.34).Originality/valueThis study is rare, and it can be used by the managers working in the IT industry.

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.

scholarly journals The relationship between excess returns, firm size and earnings on the Johannesburg Stock Exchange

1991 ◽  
Vol 22 (3) ◽  
pp. 63-73 ◽  
Author(s):  
Michael J. Page ◽  
Francis Palmer
Keyword(s):  
Firm Size ◽  
Stock Exchange ◽  
Empirical Studies ◽  
Model Misspecification ◽  
Empirical Work ◽  
The United States ◽  
Excess Returns ◽  
Market Inefficiencies ◽  
Johannesburg Stock Exchange ◽  
The Relationship

While considerable empirical work has been conducted in the United States concerning excess returns and the relationship of these returns to firm size and E/P ratio, thus far, there have been few similar empirical studies conducted using Johannesburg Stock Exchange (JSE) data. Evidence of firm size or E/P ratio effects has been ascribed by various authors to either model misspecification or market inefficiencies. In this article the evidence is examined for the South African market using 1370 company years of data over the period 1978 to 1988, and a significant earnings effect is found, but no size effect. In the analysis the problem of data bias is considered with particular emphasis on thin trading issues, and a methodology for future empirical work is described. Finally, it is suggested that the evidence can be better explained by market inefficiencies than model misspecification.

scholarly journals Association between fish intake and glioma risk: a systematic review and meta-analysis

2020 ◽  
Vol 48 (8) ◽  
pp. 030006052093969
Author(s):  
Honcho Lei ◽  
Chiho To ◽  
Unpeng Lei
Keyword(s):  
Effect Size ◽  
Observational Studies ◽  
Web Of Science ◽  
Meta Analysis ◽  
Fish Intake ◽  
Random Effects Model ◽  
Eligibility Criteria ◽  
Fresh Fish ◽  
Glioma Risk ◽  
The Relationship

Objectives We investigated the association between the consumption of fresh and processed fish and glioma risk using a meta-analysis approach. Methods We selected and analyzed observational studies that discussed the relationships between fresh and processed fish intake on glioma risk from PubMed, Web of Science, Embase, and the SinoMed and Wanfang databases from inception to 31 March 2020. Studies were selected according to pre-established eligibility criteria and data were extracted separately by two researchers. A meta-analysis was conducted based on a random-effects model to provide pooled odds ratios (OR) and 95% confidence intervals (CIs). Results Eight studies considered the relationship between fish intake (seven fresh and seven processed fish) and glioma risk and were included in this meta-analysis. The OR effect size for fresh fish intake and glioma risk was 0.72 (95%CI 0.53–0.97) and the overall OR effect size for processed fish intake and glioma risk was 1.88 (95%CI 1.06–3.34). Conclusion Dietary intake of fresh fish may reduce the risk of glioma, but consumption of processed fish may increase the risk of glioma. This study had some limitations, and further studies are therefore required to clarify the associations between fish intake and glioma risk.

Neurocognitive impairment in deficit and non-deficit schizophrenia: a meta-analysis

2017 ◽  
Vol 47 (14) ◽  
pp. 2401-2413 ◽  
Author(s):  
E. Bora ◽  
B. Binnur Akdede ◽  
K. Alptekin
Keyword(s):  
Cognitive Abilities ◽  
Meta Analysis ◽  
Healthy Controls ◽  
Cognitive Domains ◽  
Deficit Syndrome ◽  
Deficit Schizophrenia ◽  
Analytic Review ◽  
Severe Impairment ◽  
Neurocognitive Profiles ◽  
The Relationship

BackgroundMost studies suggested that patients with deficit schizophrenia have more severe impairment compared with patients with non-deficit schizophrenia. However, it is not clear whether deficit and non-deficit schizophrenia are associated with differential neurocognitive profiles.MethodsThe aim of this meta-analytic review was to compare cognitive performances of deficit and non-deficit patients with each other and with healthy controls. In the current meta-analysis, differences in cognitive abilities between 897 deficit and 1636 non-deficit patients with schizophrenia were examined. Cognitive performances of 899 healthy controls were also compared with 350 patients with deficit and 592 non-deficit schizophrenia.ResultsBoth deficit (d= 1.04–1.53) and non-deficit (d= 0.68–1.19) schizophrenia were associated with significant deficits in all cognitive domains. Deficit patients underperformed non-deficit patients in all cognitive domains (d= 0.24–0.84) and individual tasks (d= 0.39–0.93). The relationship between deficit syndrome and impairment in olfaction, social cognition, verbal fluency, and speed-based cognitive tasks were relatively stronger.ConclusionsOur findings suggest that there is consistent evidence for a significant relationship between deficit syndrome and more severe cognitive impairment in schizophrenia.

scholarly journals HUBUNGAN NONSUICIDAL SELF-INJURY (NSSI) DENGAN ACQUIRED CAPABILITY FOR SUICIDE: STUDI META-ANALISIS

2021 ◽  
Vol 5 (2) ◽  
pp. 590
Author(s):  
Puti Andini Pradipta ◽  
Monty Prawiratirta Satiadarma ◽  
Untung Subroto
Keyword(s):  
Effect Size ◽  
Suicide Attempts ◽  
Meta Analysis ◽  
Random Effect ◽  
Interpersonal Theory ◽  
Acquired Capability ◽  
Self Injury ◽  
The Relationship ◽  
Commit Suicide ◽  
Nonsuicidal Self Injury

Suicide was the third leading cause of death in adolescents in the world in 2016 with a mortality rate of about 136,000 cases. Reasons teenagers commit suicide include family financial problems, psychological distress, low self-esteem, lack of confidence, and depression. In addition, the difficulty of professional help and social support from the surrounding environment also opens up opportunities for adolescents to commit suicide. Suicidal behavior is often associated with nonsuicidal self-injury (NSSI). NSSI is an act of self-injury with no intention to commit suicide, but according to the Interpersonal Theory for Suicide by Joiner (2005), NSSI’s actions are considered to be one of the factors increasing the ability to commit suicide attempts (acquired capability). This study is aimed at exploring the relationship between NSSI and acquired capability for suicide by meta-analysis study. Eight studies from 119 articles involving the term NSSI and acquired capability were studied using the random-effects model. A total of 3398 samples were included in the study. The results showed that the effect size between NSSI and acquired capability was (r = .208), which means that NSSI is positively correlated with acquired capability and has a weak relationship. The results of this study also show that this study has a high heterogeneity value (I2 = 91,48) and there is no publication bias. Bunuh diri adalah penyebab kematian nomor tiga pada remaja di dunia pada tahun 2016 dengan angka kematian sekitar 136.000 kasus. Alasan remaja melakukan bunuh diri antara lain adalah masalah-masalah keuangan keluarga, distres psikologis, rendahnya harga diri, kurang percaya diri, dan depresi. Selain itu, sulitnya pertolongan tenaga profesional dan dukungan sosial dari lingkungan sekitarnya juga membuka peluang para remaja untuk melakukan percobaan bunuh diri. Perilaku bunuh diri sering dihubungkan dengan Nonsuicidal Self-Injury (NSSI). NSSI merupakan tindakan perusakan diri dengan tanpa adanya keinginan untuk bunuh diri, namun menurut teori Interpersonal Theory for Suicide oleh Joiner (2005), tindakan NSSI dianggap menjadi salah satu faktor meningkatnya kemampuan seseorang untuk melakukan percobaan bunuh diri (acquired capability). Penelitian ini bertujuan untuk mengeksplorasi hubungan antara NSSI dan acquired capability dengan studi meta-analisis. Delapan artikel korelasional dari 119 artikel yang melibatkan istilah NSSI dan acquired capability dipelajari menggunakan random-effect models. Sebanyak 3398 sampel dilibatkan dalam penelitian ini. Hasil penelitian menunjukkan nilai effect size antara NSSI dan acquired capability adalah sebesar (r = .208), yang berarti NSSI berkorelasi positif dengan acquired capability dan memiliki hubungan yang lemah. Hasil penelitian ini juga menunjukkan bahwa studi ini memiliki nilai heterogenitas yang tinggi(I2 = 91,48) dan tidak terdapat bias publikasi.

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