Search across guide titles, topics, keywords, and content throughout the Researcher's Field Guide.
Showing 176–200 of 651 results
Finding an influential or highly relevant-looking study outside your eligibility criteria creates a difficult choice. Its importance may justify discussing it, but not automatically including it in the evidence being synthesized.
Read Guide →Duplicate publications can make one study appear to be several independent pieces of evidence. If reviewers fail to recognize the overlap, the same participants and findings may be counted repeatedly and distort the review.
Read Guide →Two reviewers are often used to reduce errors and individual judgment in study selection, but the requirement depends on the review methodology and screening stage. Learn when independent duplicate screening is expected and what “two reviewers” actually means.
Read Guide →Two papers are not necessarily two independent studies. Learn how to compare study identifiers, participants, recruitment periods, settings, methods, and other clues to determine whether publications report the same underlying study.
Read Guide →When one study has several publications, the primary report is usually the report chosen as the main source for study results, not simply the first or most cited paper. Learn how to make and document that choice.
Read Guide →A follow-up paper may contain fewer participants than the original report without representing a new study. Learn how to trace the retained sample, distinguish follow-up from independent evidence, and extract the appropriate results.
Read Guide →A widely used cohort, registry, or database can generate many papers and disproportionately shape a literature. Learn how to map shared data provenance, distinguish publication volume from independent replication, and prevent repeated samples from receiving unintended influence.
Read Guide →Not every paper you find deserves the same amount of attention. Screen its relevance first, then consider whether the evidence, methods, and role it may play in your research justify a deeper reading.
Read Guide →You do not need the same depth of understanding for every research paper you encounter. The more consequential the paper is to your argument, methodology, or interpretation, the more deeply you need to understand the parts on which you rely.
Read Guide →You do not need to scrutinize the methods of every paper during your first pass. Read them closely when your interpretation, citation, methodological decision, or confidence in a finding depends on how the evidence was produced.
Read Guide →The discussion deserves serious attention, but it is the authors' interpretation of the evidence rather than the evidence itself. Compare its major claims with the results, methods, limitations, and plausible alternative explanations before accepting them.
Read Guide →A paper outside your discipline can be difficult even when you are an experienced researcher. Build enough disciplinary context to understand the question, terminology, methods, evidence, and assumptions that matter to why you are reading it.
Read Guide →You do not need to master every unfamiliar method before you can learn from a paper. First identify exactly what you do not understand, determine whether it matters to your purpose, and investigate it deeply enough to interpret the evidence responsibly.
Read Guide →Even an important paper rarely requires reading every item in its reference list. Follow the citations that carry consequential claims, define key methods, reveal competing evidence, or lead you to literature your own work depends on.
Read Guide →Yes. Publication in a prestigious journal can be a useful signal about selectivity and scholarly attention, but it does not guarantee that an individual study is methodologically strong or that its conclusions are justified.
Read Guide →A paper can change status after publication through a correction, expression of concern, or retraction. Before relying on an important study, check the publisher's current record and relevant scholarly databases rather than assuming the version you found reflects its present status.
Read Guide →A retracted paper should generally not be used as ordinary valid evidence for the claim that led to its retraction. It may still belong in a literature review when the retraction itself, its historical influence, or the consequences of unreliable research are relevant to the review.
Read Guide →Discovering serious problems in an important paper does not automatically tell you what to do next. Verify the problem, determine which claims it affects, reassess the surrounding evidence, and revise your own conclusions in proportion to the damage.
Read Guide →Clear writing can make a study easier to understand, but it does not make the underlying methods stronger. Learn how to evaluate methodological quality without being overly persuaded by polished presentation.
Read Guide →Objective measurement can reduce some forms of judgment and reporting error, but it does not guarantee that the resulting variable represents the intended construct. Precision and construct validity answer different questions.
Read Guide →When several systematic reviews address the same topic, do not automatically choose the newest, largest, or most highly cited. Start with relevance, then compare methodological trustworthiness, currency, evidence coverage, and how cautiously each review interprets its findings.
Read Guide →Important papers deserve a status check before you rely on them. Learn when checking for corrections, retractions, and other post-publication updates matters most and how to do it efficiently.
Read Guide →Corrections, errata, expressions of concern, and retractions signal different things about a published paper. Learn what each notice means and how it should affect your use of the research.
Read Guide →A correction is evidence that something in a published paper changed, not automatic evidence that the entire study is unreliable. What matters is what was corrected and whether it affects the evidence you need.
Read Guide →Retraction does not necessarily mean every sentence in a paper is false. But identifying apparently unaffected information is not the same as restoring a retracted paper to ordinary evidential use.
Read Guide →