Articles with "statistical power" as a keyword



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Statistical Power and Swallowing Rehabilitation Research: Current Landscape and Next Steps

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Published in 2022 at "Dysphagia"

DOI: 10.1007/s00455-022-10428-2

Abstract: Despite rapid growth in the number of treatments to rehabilitate dysphagia, studies often demonstrate mixed results with non-significant changes to functional outcomes. Given that power analyses are infrequently reported in dysphagia research, it remains unclear… read more here.

Keywords: swallowing rehabilitation; power swallowing; power; research ... See more keywords
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Power Considerations in Designed Experiments

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Published in 2019 at "Journal of statistical theory and practice"

DOI: 10.1007/s42519-019-0071-6

Abstract: Designed experiments for ANOVA studies are ubiquitous across all areas of scientific endeavor. An important decision facing experimenter is that of the experiment run size. Often the run size is chosen to meet a desired… read more here.

Keywords: designed experiments; power; statistical power; considerations designed ... See more keywords
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Assessment of the Impact of an Endpoint Committee in the Ocular Hypertension Treatment Study.

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Published in 2019 at "American journal of ophthalmology"

DOI: 10.1016/j.ajo.2018.11.006

Abstract: PURPOSE To assess the impact of a masked Endpoint Committee on estimates of the incidence of primary open-angle glaucoma (POAG) treatment efficacy and statistical power of the Ocular Hypertension Treatment Study-Phase 1, 1994-2002 (OHTS-1). DESIGN… read more here.

Keywords: committee; treatment; study; endpoint committee ... See more keywords
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Effects of intense assessment on statistical power in randomized controlled trials: Simulation study on depression

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Published in 2020 at "Internet Interventions"

DOI: 10.1016/j.invent.2020.100313

Abstract: Smartphone-based devices are increasingly recognized to assess disease symptoms in daily life (e.g. ecological momentary assessment, EMA). Despite this development in digital psychiatry, clinical trials are mainly based on point assessments of psychopathology. This study… read more here.

Keywords: intense assessment; randomized controlled; study; power ... See more keywords
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What do we know about R&D spillovers and productivity? Meta-analysis evidence on heterogeneity and statistical power

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Published in 2018 at "Research Policy"

DOI: 10.1016/j.respol.2019.103866

Abstract: As Mohnen (1996: 40) has indicated, research and development (RD (ii) usually smaller than that of own-RD (iii) too small to be practically significant when evidence with adequate statistical power is considered. Controlling for observable… read more here.

Keywords: research; heterogeneity; know spillovers; evidence ... See more keywords
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Statistical power in clinical trials of interventions for mood, anxiety, and psychotic disorders.

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Published in 2022 at "Psychological medicine"

DOI: 10.1017/s0033291722001362

Abstract: BACKGROUND Previous research has suggested that statistical power is suboptimal in many biomedical disciplines, but it is unclear whether power is better in trials for particular interventions, disorders, or outcome types. We therefore performed a… read more here.

Keywords: power; statistical power; mood anxiety; medicine ... See more keywords
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Statistical power in genome-wide association studies and quantitative trait locus mapping

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Published in 2019 at "Heredity"

DOI: 10.1038/s41437-019-0205-3

Abstract: Power calculation prior to a genetic experiment can help investigators choose the optimal sample size to detect a quantitative trait locus (QTL). Without the guidance of power analysis, an experiment may be underpowered or overpowered.… read more here.

Keywords: power analysis; quantitative trait; power; association ... See more keywords
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LISA improves statistical analysis for fMRI

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Published in 2018 at "Nature Communications"

DOI: 10.1038/s41467-018-06304-z

Abstract: One of the principal goals in functional magnetic resonance imaging (fMRI) is the detection of local activation in the human brain. However, lack of statistical power and inflated false positive rates have recently been identified… read more here.

Keywords: fmri; analysis fmri; analysis; statistical analysis ... See more keywords
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Evaluating the Safety of Endoscopy During Pregnancy: The Robust Statistical Power vs Limitations of a National Registry Study.

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Published in 2017 at "Gastroenterology"

DOI: 10.1053/j.gastro.2016.12.014

Abstract: 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112… read more here.

Keywords: statistical power; pregnancy; safety; robust statistical ... See more keywords
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132 Lack of Randomization and Its Impact on Statistical Power and Validity of Statistical Analyses

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Published in 2021 at "Journal of Animal Science"

DOI: 10.1093/jas/skab054.124

Abstract: Allocation of treatments to experimental units (EUs) is done at random. In the presence of a concomitant variable (e.g., initial body weight; iBW), one strategy is to block WUs into iBW groups. However, in some… read more here.

Keywords: crd; ibw; impact; statistical power ... See more keywords
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Lack of statistical power as a major limitation in understanding MHC‐mediated immunocompetence in wild vertebrate populations

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Published in 2019 at "Molecular Ecology"

DOI: 10.1111/mec.15276

Abstract: Disentangling the sources of variation in developing an effective immune response against pathogens is of major interest to immunoecology and evolutionary biology. To date, the link between immunocompetence and genetic variation at the major histocompatibility… read more here.

Keywords: immunocompetence wild; variation; immunocompetence; mhc ... See more keywords