Research
How does peer review actually work before publication?
Before a scientific claim reaches print, an editor and a small group of outside experts read it first — a filter meant to catch errors, not to guarantee a finding is correct.
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Research
Research examines the machinery behind published science: who funds a study, how peer review is conducted, which results get replicated, and why papers are withdrawn. Coverage includes publication bias and the career incentives shaping research questions. Written for scientists, students and readers assessing how much weight a paper deserves.
How science gets made and checked: grant decisions, peer review practice, replication attempts, retractions and the incentives shaping publication.
Research
When animal studies fail to translate
Animal research is an indispensable early filter, yet the large majority of promising animal results never become useful human therapies, and the reasons are structural.
Research
What makes an observational study strong
Observational studies vary enormously in quality; their strength is decided by confounding control, timing of measurement, and whether the design matches its causal question.
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How conflict of interest disclosures work
Disclosures are standardized statements of financial and personal ties, built to reveal influence before readers judge the work, and they work only when asked for and checked.
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Why preprints are not peer reviewed yet
A preprint is a manuscript posted publicly before any journal has examined it, a deliberate shortcut with real speed and real hazards for readers.
Research
What a meta-analysis actually combines
A meta-analysis pools the results of comparable studies into a single weighted estimate, and its findings are only as sound as the studies and the searching underneath it.
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How a finding earns the label reproducible
Reproducibility is checked by redoing the work under agreed conditions, and the checked results are humbler than the originals far more often than anyone expected.
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Why sample size matters in medical research
Small studies are not modest versions of large ones; they measure effects badly, exaggerate them often, and miss them entirely more than anyone plans for.
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What a cohort study can and cannot show
Cohort studies follow people forward through real lives, which makes them unmatched for questions randomized trials cannot ask and unreliable for claims of cause.
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What effect size means beyond significance
A statistically significant result says an effect probably is not zero; the effect size says how large it actually is, and that is the number a reader needs.