Results 81 to 90 of about 1,575,220 (259)

Randomization Tests that Condition on Non-Categorical Covariate Balance

open access: yesJournal of Causal Inference, 2019
A benefit of randomized experiments is that covariate distributions of treatment and control groups are balanced on average, resulting in simple unbiased estimators for treatment effects.
Branson Zach, Miratrix Luke W.
doaj   +1 more source

HUTCHINSONIAN RATIOS AND STATISTICAL POWER [PDF]

open access: yesEvolution, 1989
Jonathan B, Losos   +2 more
openaire   +2 more sources

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

open access: yesFEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane   +11 more
wiley   +1 more source

The skills required for transition to university and study in biological sciences: A student perspective

open access: yesFEBS Open Bio, EarlyView.
Bioscience students were asked for their opinions on the value and teaching of skills. 204 responded that teamwork, time management and study skills are necessary to reach University, that scientific writing, research, laboratory and presentation skills are taught effectively during their studies, while other skills are gained inherently through study ...
Janella Borrell, Susan Crennell
wiley   +1 more source

The Statistical Tests Used in the Literature on Conditioned Place Preference Induced by Nicotine in Mice Are Underpowered

open access: yesJournal of Trial and Error
Introduction: In recent decades, concerns have been raised about the validity and reliability of many research results. Inadequate research practices, including insufficient statistical power, have contributed to the replication crisis.
François Léonard, Ezio Tirelli
doaj   +1 more source

Understanding Power and Rules of Thumb for Determining Sample Sizes [PDF]

open access: yesTutorials in Quantitative Methods for Psychology, 2007
This article addresses the definition of power and its relationship to Type I and Type II errors. We discuss the relationship of sample size and power.
Betsy L. Morgan   +1 more
doaj  

Identifying gene expression signatures for risk stratification of postoperative adjuvant chemotherapy in colorectal cancer

open access: yesFEBS Open Bio, EarlyView.
A novel signature integrating genome‐wide analysis with clinical factors predicts recurrence in stage II colorectal cancer and enables a new risk stratification to guide postoperative adjuvant chemotherapy. Clinical risk stratification for postoperative recurrence in patients with pathological stage II (pStage II) colorectal cancer (CRC) is essential ...
Mayuko Otomo   +7 more
wiley   +1 more source

A power primer [PDF]

open access: yesTutorials in Quantitative Methods for Psychology, 2007
One possible reason for the continued neglect of statistical power analysis in research in the behavioral sciences is the inaccessibility of or difficulty with the standard material.
Jacob Cohen
doaj  

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

open access: yesFEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee   +3 more
wiley   +1 more source

Statistical power

open access: yes, 2021
David Weisburd   +3 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy