Retraction: ‘The relationship of general mental ability to entrepreneurial firm performance: A meta-analysis’ by David S. DeGeest, Scott Seibert and Ernest O'Boyle

General mental ability (GMA) has long been considered one of the best predictors of training success and considerably better than specific cognitive abilities (SCAs). Recently, however, researchers have provided evidence that SCAs may be of similar importance for training success, a finding supporting personnel selection based on job-related requirements. The present meta-analysis therefore seeks to assess validities of SCAs for training success in various occupations in a sample of German primary studies. Our meta-analysis (k = 72) revealed operational validities between ρ = .18 and ρ = .26 for different SCAs. Furthermore, results varied by occupational category, supporting a job-specific benefit of SCAs.

Download Full-text

Associations of CTLA4 Gene Polymorphisms with Graves’ Ophthalmopathy: A Meta-Analysis

International Journal of Genomics ◽

10.1155/2014/537969 ◽

2014 ◽

Vol 2014 ◽

pp. 1-7 ◽

Cited By ~ 4

Author(s):

Pengfei Du ◽

Xiaojie Ma ◽

Changjiang Wang

Keyword(s):

Genetic Model ◽

Meta Analysis ◽

Case Control Studies ◽

Graves Ophthalmopathy ◽

Increased Risk ◽

Exon 1 ◽

Ctla4 Gene ◽

Relationship Of ◽

The Relationship ◽

Susceptible Gene

Many studies have established that T-lymphocyte antigen-4 (CTLA4) is a susceptible gene for Graves’ disease (GD). Also many studies showed the association between the CTLA4 exon-1 49A/G polymorphism and the risk of developing Graves’ ophthalmopathy (GO) in GD patients. But those results were inconsistent. In recent years many new studies were published which helped to shed light on the relationship of CTLA4 SNP49 with GO. So we performed the meta-analysis to explore the association between the SNP49 and GO susceptibility in GD patients. Studies up to February 29, 2012, were searched by using PubMed. The odds ratio was used to evaluate the strength of the association. Altogether 12 case-control studies involving 2,505 participants were included in the meta-analysis. Results showed that the G allele was related to the increased risk of GO compared with the A allele under allelic genetic model (OR = 1.14, 95% CI: 1.14–1.72,P=0.001) in European subgroup. No publication bias was detected. Our results showed that the SNP49 polymorphism of CTLA4 gene was related to increased risk of GO.

Download Full-text

Low birth weight, preterm birth and small for gestational age association with adult depression: systematic review and meta-analysis

The British Journal of Psychiatry ◽

10.1192/bjp.bp.113.139014 ◽

2014 ◽

Vol 205 (5) ◽

pp. 340-347 ◽

Cited By ~ 31

Author(s):

Christian Loret De Mola ◽

Giovanny Vinícius Araújo De França ◽

Luciana de Avila Quevedo ◽

Bernardo Lessa Horta

Keyword(s):

Birth Weight ◽

Low Birth Weight ◽

Gestational Age ◽

Premature Birth ◽

Fixed Effects ◽

Meta Analysis ◽

Adult Depression ◽

Meta Analyses ◽

Relationship Of ◽

The Relationship

BackgroundThere is no consensus on the effects that low birth weight, premature birth and intrauterine growth have on later depression.AimsTo review systematically the evidence on the relationship of low birth weight, smallness for gestational age (SGA) and premature birth with adult depression.MethodWe searched the literature for original studies assessing the effect of low birth weight, premature birth and SGA on adult depression. Separate meta-analyses were carried out for each exposure using random and fixed effects models. We evaluated the contribution of methodological covariates to heterogeneity using meta-regression.ResultsWe identified 14 studies evaluating low birth weight, 9 premature birth and 4 SGA. Low birth weight increased the odds of depression (OR = 1.39, 95% CI 1.21–1.60). Premature birth and SGA were not associated with depression, but publication bias might have underestimated the effect of the former and only four studies evaluated SGA.ConclusionsLow birth weight was associated with depression. Future studies evaluating premature birth and SGA are needed.

Download Full-text