Search across guide titles, topics, keywords, and content throughout the Researcher's Field Guide.
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Improving on previous research does not mean changing everything. Learn how to identify the conceptual, methodological, measurement, and reporting strengths worth carrying forward into your own study.
Read Guide →Finding literature on your idea does not automatically kill the study, and finding a gap does not automatically justify it. Learn when the evidence should make you continue, revise, replicate, redirect, or stop.
Read Guide →A good literature search does more than retrieve convenient papers. Learn how to recognize and deliberately look for the studies your understanding of the field would materially suffer without.
Read Guide →No single research database necessarily represents the whole literature relevant to your question. Learn how to choose complementary databases based on disciplinary coverage, geography, study type, and search purpose.
Read Guide →Recent literature may tell you where a field is now without showing how it got there. Learn when older research still matters and how to find foundational studies without treating age as proof of importance.
Read Guide →The newest important research may not yet be highly cited, incorporated into reviews, or prominent in search rankings. Learn how to identify recent evidence without confusing novelty with importance.
Read Guide →Published journal articles may represent only part of the available evidence. Learn when grey and unpublished literature can materially improve your review and how to use it without lowering your standards of appraisal.
Read Guide →Publication is not the final state of a research paper. Learn how to check whether important studies have since been corrected, flagged, or retracted and how to respond without treating every update as equivalent.
Read Guide →Ten papers do not necessarily represent ten independent studies. Learn how to identify multiple reports from the same underlying research and avoid overstating the amount of independent evidence.
Read Guide →Publication and peer review do not eliminate methodological weaknesses. Learn how to evaluate what a study actually did, how much bias its design permits, and how much evidential weight its findings deserve.
Read Guide →Not every study deserves equal evidential weight. Learn how to identify which evidence most strongly supports a particular conclusion without reducing research quality to journal prestige, citation counts, or a simplistic hierarchy.
Read Guide →Weak evidence does not simply mean a poorly written or statistically non-significant study. Learn how to identify which parts of an evidence base provide the least secure foundation for a conclusion and what they can still legitimately tell you.
Read Guide →Conflicting findings do not automatically mean that one study is wrong. Learn how to investigate genuine disagreement among studies and determine whether it reflects chance, bias, methods, context, or real variation in the phenomenon.
Read Guide →Uncertainty is not the same as disagreement, weak evidence, or evidence of no effect. Learn how to identify exactly what remains uncertain, why it remains uncertain, and how strongly your conclusions should be qualified.
Read Guide →Cherry-picking is not limited to deliberately hiding studies you dislike. Learn how selective searching, inclusion, appraisal, outcome choice, citation, and wording can quietly make a literature review support the conclusion you expected to find.
Read Guide →A claim can be repeated across dozens of papers while still resting on one misunderstood or surprisingly weak source. Learn how to follow important citations back to the evidence that actually generated the claim.
Read Guide →A conclusion becomes no more certain simply because many authors repeat it. Learn how to work backward from interpretation to design, measurements, estimates, and uncertainty to determine what the evidence actually establishes.
Read Guide →A research gap is not simply a topic with few papers. Learn how to identify exactly what the existing evidence cannot answer and whether that unanswered question is important enough to justify new research.
Read Guide →A literature review can contain recent papers and still be out of date. Learn how to judge search currency based on when you actually searched, how quickly the field changes, and whether new evidence could alter your conclusions.
Read Guide →A literature review is not a parade of studies. Learn how to explain what the evidence collectively establishes, where it converges, why findings differ, how confident the conclusions are, and what remains unresolved.
Read Guide →A literature review should not give every study one equal vote. Learn how to explain why some evidence deserves greater influence on your conclusions based on what it can credibly establish.
Read Guide →Research uncertainty should neither be hidden nor inflated. Learn how to explain exactly what remains uncertain, why it remains uncertain, how much the evidence still establishes, and whether the uncertainty could materially change the conclusion.
Read Guide →“More research is needed” is rarely a useful research recommendation. Learn how to identify the study, population, outcome, design, measurement, or replication that could actually resolve an important uncertainty.
Read Guide →Your first research question is a starting point, not a contract. Learn how the literature can narrow, redirect, complicate, or replace the question you originally intended to study.
Read Guide →Discovering that your proposed study has already been done is not the real problem. The question is whether doing it again would provide information that the existing evidence still needs.
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