Search Results - "Ioannidis, John"

Why Most Clinical Research Is Not Useful by Ioannidis, John P A

“…John Ioannidis argues that problem base, context placement, information gain, pragmatism, patient centeredness, value for money, feasibility, and transparency…”
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The Proposal to Lower P Value Thresholds to .005 by Ioannidis, John P. A

“…Ioannidis offers insight on the proposed lowering of the P values to .005. He notes that P values and accompanying methods of statistical significance testing…”
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How to make more published research true by Ioannidis, John P A

“…In a 2005 paper that has been accessed more than a million times, John Ioannidis explained why most published research findings were false. Here he revisits…”
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Empirical assessment of published effect sizes and power in the recent cognitive neuroscience and psychology literature by Szucs, Denes, Ioannidis, John P A

“…We have empirically assessed the distribution of published effect sizes and estimated power by analyzing 26,841 statistical records from 3,801 cognitive…”
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The Mass Production of Redundant, Misleading, and Conflicted Systematic Reviews and Meta-analyses by IOANNIDIS, JOHN P.A.

“…Context: Currently, most systematic reviews and meta-analyses are done retrospectively with fragmented published information. This article aims to explore the…”
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Meta-research: Why research on research matters by Ioannidis, John P A

“…Meta-research is the study of research itself: its methods, reporting, reproducibility, evaluation, and incentives. Given that science is the key driver of…”
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The Challenge of Reforming Nutritional Epidemiologic Research by Ioannidis, John P. A

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Infection fatality rate of COVID-19 inferred from seroprevalence data by Ioannidis, John P A

“…To estimate the infection fatality rate of coronavirus disease 2019 (COVID-19) from seroprevalence data. I searched PubMed and preprint servers for COVID-19…”
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What Other Countries Can Learn From Italy During the COVID-19 Pandemic by Boccia, Stefania, Ricciardi, Walter, Ioannidis, John P A

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The efficacy of psychotherapies and pharmacotherapies for mental disorders in adults: an umbrella review and meta‐analytic evaluation of recent meta‐analyses by Leichsenring, Falk, Steinert, Christiane, Rabung, Sven, Ioannidis, John P.A.

“…Mental disorders represent a worldwide public health concern. Psychotherapies and pharmacotherapies are recommended as first line treatments. However, evidence…”
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Meta-analysis methods for genome-wide association studies and beyond by Evangelou, Evangelos, Ioannidis, John P. A.

“…Key Points Meta-analysis of genome-wide association studies has contributed to the discovery of most of the recently identified genetic risk factors for…”
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Updated science-wide author databases of standardized citation indicators by Ioannidis, John P A, Boyack, Kevin W, Baas, Jeroen

“…This Formal Comment presents an update to citation databases of top-cited scientists across all scientific fields, including more granular information on…”
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Evidence-based medicine has been hijacked: a report to David Sackett by Ioannidis, John P.A

“…Abstract This is a confession building on a conversation with David Sackett in 2004 when I shared with him some personal adventures in evidence-based medicine…”
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A standardized citation metrics author database annotated for scientific field by Ioannidis, John P A, Baas, Jeroen, Klavans, Richard, Boyack, Kevin W

“…Citation metrics are widely used and misused. We have created a publicly available database of 100,000 top scientists that provides standardized information on…”
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Reproducibility in Science: Improving the Standard for Basic and Preclinical Research by Begley, C Glenn, Ioannidis, John P.A

“…Medical and scientific advances are predicated on new knowledge that is robust and reliable and that serves as a solid foundation on which further advances can…”
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Publication and other reporting biases in cognitive sciences: detection, prevalence, and prevention by Ioannidis, John P.A, Munafò, Marcus R, Fusar-Poli, Paolo, Nosek, Brian A, David, Sean P

“…Highlights • Publication and other reporting biases can have major detrimental effects on the credibility and value of research evidence. • There is…”
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Global perspective of COVID‐19 epidemiology for a full‐cycle pandemic by Ioannidis, John P. A.

“…As of October 2020, there are >1 million documented deaths with COVID‐19. Excess deaths can be caused by both COVID‐19 and the measures taken. COVID‐19 shows…”
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Graphical methods and numerical summaries for presenting results from multiple-treatment meta-analysis: an overview and tutorial by Salanti, Georgia, Ades, A.E, Ioannidis, John P.A

“…Abstract Objective To present some simple graphical and quantitative ways to assist interpretation and improve presentation of results from multiple-treatment…”
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Recalibrating the Use of Race in Medical Research by Ioannidis, John P. A, Powe, Neil R, Yancy, Clyde

“…This Viewpoint reviews the way race has been used and misused in medical research and urges careful consideration by investigators of how its use might…”
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Environmental risk factors and Parkinson's disease: An umbrella review of meta-analyses by Bellou, Vanesa, Belbasis, Lazaros, Tzoulaki, Ioanna, Evangelou, Evangelos, Ioannidis, John P.A

“…Abstract Background Parkinson's disease is a neurological disorder with complex pathogenesis implicating both environmental and genetic factors. We aimed to…”
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