Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 35 for “"Publication Bias"”.
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EVALUATING THE EFFECTS OF PUBLICATION BIAS IN SINGLE-CASE RESEARCH DESIGN FOR EVIDENCE-BASED PRACTICES IN AUTISM SPECTRUM DISORDER
… may be unwilling to submit these papers for publication due to null findings and journals may be unwilling and unlikely to publish null outcomes (i.e., publication bias). The lack of submission and publication of null findings, leading to a disproportion of positive studies in the published …
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Identification of Randomized Trials for Inclusion in Meta-Analyses of Treatments for Childhood Acute Lymphoblastic Leukaemia, and Investigation of Factors Leading to Publication Bias
… and meta-analysts that factors leading to publication bias in the form of delayed or non-publication of an eligible study are identified. This thesis is an attempt to do this. <br></br><br></br> <b><u>Data</u></b>: The set of randomized trials identified by the Childhood Acute Lymphoblastic …
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Can ideas activate behavior? A meta-analysis of the effects of a variety of conceptual priming objects and strategies on behavioral outcomes
… to estimate its mean effect size and to quantify publication bias as well as the effects of moderators like goal expectancy (ease), filler tasks, goal value, and the directness of the association between prime and outcome. We estimated a mean of d = 0.4220 across 682 eligible effect sizes. Despite …
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Publication and Registration Bias in Randomized Clinical Trials
… research literature has identified the impact of publication bias in randomized clinical trials (RCTs). The prospective registration of RCTs provides a means to mitigate publication bias by allowing researchers to explore a source of trial information, that may or may not be published. This thesis …
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Does Marriage and Relationship Education Improve Couples' Communication? A Meta-Analytic Study
… and were not affected significantly by publication bias. No differences in effect were found for gender. Observational assessments did produce larger effects than self-report assessments. MRE produced the largest effect on positive conflict resolution outcomes. These results have …
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Three essays in economics
… role of cognitive limitations in understanding biases in communication and learning. The second essay, joint with Masao Fukui, highlights the role of distributional assumptions of infection rates for epidemiological predictions, responding to the recent COVID-19 outbreak. The first chapter …
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Essays on innovation in health care markets
… without the drug manufacturer's involvement. Publication bias explains a large share of this effect; observable characteristics of trial design and patient enrollment are less important.
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Meta-Analysis of the Predictive Validity of Scholastic Aptitude Test (SAT) and American College Testing (ACT) Scores for College GPA
… and college success. Moderators examined were publication status and exam type with no effect found for publication status. A significant effect of exam type was found, with a slightly higher average correlation for SAT compared to ACT score and college GPA. No publication bias was found in the …
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Concept associations as the basis of social priming
… study. Across eight studies, reported without publication bias, I found that the observed strength of concept pair associations (Studies 1 and P1) from the priming literature predicted my capacity to observe (Studies 2, P2, and P5) or not (Studies 2, P3, P4, and P5) social priming effects. An …
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Engaging Generation Z: A Study On Facebook Group Implementation In Language Courses And In Multiple Contexts
… years to examine popular theoretical frameworks, publication bias, themes, and how a Facebook group can be used with Generation Z learners to facilitate engagement with language instruction. The research was supported by a literature review that includes second language acquisition theory, …
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Μακροχρόνια αποτελέσματα και επιπλοκές της διαεπιδερμικής φωτοδιαθλαστικής κερατεκτομής έναντι της φωτοδιαθλαστικής κερατεκτομής με αφαίρεση επιθηλίου: μια συστηματική ανασκόπηση και μετα -ανάλυση
… GRADE: Μέση ποιότητα (συνεπή ευρήματα, low publication bias Egger p=0.24). Ισχυρό σε sensitivity (χωρίς Shapira) Συμπέρασμα: Οι μεθοδοι tPRK και PRK είναι ισοδύναμες σε efficacy/safety (moderate evidence). Επιλογή βάσει χειρουργού/ασθενή (tPRK: ταχύτερη/λιγότερος πόνος). Χρειάζονται RCTs >24 …
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Essays on Unemployment
… we argue the magnitude is overstated due to publication bias: statistically insignificant or negatively-signed estimates are much less likely to be published. Correcting for publication bias decreases the overall average elasticity of unemployment duration with respect to UI benefit …
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The impact of diversity training in organizations: a systematic review using a meta-analysis methodology from 1991-2006
… tests for homogeneity of variance, and tests for publication bias were calculated using the Comprehensive Meta-Analysis, Version 2.0. The results of this meta-analysis indicate that diversity training has an effect on changing attitudes and behaviors in organizations. However, attitude and …
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Bilingualism and executive functioning: language experience as more than a binary variable.
… control. Others draw attention to a possible publication bias, a recent series of null results and the large-scale variance within bilingual populations. <br/><br/>The current work sought to further examine the bilingual advantage and the circumstances under which it may become apparent. …
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Efeitos da suplementação de probióticos nos parâmetros antropométricos de pacientes com Diabetes Mellitus 2: uma revisão sistemática e meta-análise
… was assessed using the Revised Cochrane Risk of Bias Tool for Randomized Trials (RoB 2). Data analysis showed that probiotic supplementation for more than eight weeks significantly reduced waist circumference (WC) compared to placebo. This reduction was accompanied by a decrease in Hb1c and a …
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Effects of Second-Generation Antidepressants on Cognitive Functions: A Systematic Review and Meta-Analysis
… studies was assessed by Cochrane risk of bias tool. A random effects model was used to estimate the pooled effects of antidepressant use on cognitive functioning. Heterogeneity was assessed by I2 testing. Egger's regression test and Trim and Fill method were used to examine for the …
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The Relationship between Bilingualism, Cognitive Control, and Mind Wandering
… Furthermore, there is some evidence of a publication bias that favors findings supporting a bilingual advantage. The purpose of this study was to address this discrepancy in the literature by examining performance of bilinguals and monolinguals on a variety of cognitive control tasks. A …
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Avaliação da redução do tempo de internação e da exposição à radiação e avaliação do impacto clínico do protocolo de Cintilografia de Perfusão Miocárdica estresseisolado comparado com o protocolo convencional estresserepouso: estudo prospectivo e meta-análise
… = 0.48) and the Funnel Plot graphics showed no publication bias. Conclusions: Both studies, meta-analysis and prospective study, showed that the stress-only protocol is similar to the conventional protocol (stress-rest) in safety and accuracy
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Leadership Reimagined: Integrating Futures Thinking into Health Sciences Education
… are long, expensive, impractical, and prone to publication bias. These phenomena are linked to the inherent assumptions in these approaches that favor superficial solutions to complex questions, which is inappropriate for complex adaptive systems such as HSE, particularly in a social context …
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Mindfulness and working memory capacity: two comprehensive meta-analyses examining working memory as a mechanism of mindfulness
… condition and for studies with some risk of publication bias, both of which suggest a strength of the findings, as mindfulness-based interventions improved WMC over-and-above control interventions and regardless of the quality of study design. Differences in the effect size between the two …
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