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Some research uncertainties can be resolved by checking records or asking the right person. Others need to be tested in practice. Learn when a small feasibility check is worth doing before you commit to the full study.
Read Guide →Research ethics should enter the conversation before your research question is finalized, not only when you prepare an ethics application. Early ethical thinking can reveal whether a worthwhile question can be investigated responsibly and whether the question itself needs refinement.
Read Guide →An important research question does not automatically justify every study that could answer it. When obtaining an answer would expose participants to risks or burdens that cannot be adequately minimized or justified, the method or even the question may need to change.
Read Guide →The method that would produce the strongest evidence is not always a method researchers may ethically use. The solution is usually to find the strongest ethically defensible alternative and adjust the research question or conclusions to match the evidence it can provide.
Read Guide →Sensitive topics can often be studied ethically, but the topic alone does not determine the risk. Researchers should examine what participation actually requires, what could go wrong, and how the study can obtain useful evidence without creating avoidable harm.
Read Guide →The possibility of a difficult ethics review should inform research planning, but difficulty obtaining approval is not itself a reason to abandon a worthwhile question. What matters is why approval may be difficult and whether that difficulty reveals a substantive ethical or feasibility problem.
Read Guide →Research involving people in situations of vulnerability or populations that are difficult to reach may be both necessary and ethically justified. Before committing to the question, examine why their participation is necessary, what makes participation or access difficult, and what protections the research context requires.
Read Guide →Some research questions require information that cannot responsibly be collected, linked, accessed, or reported in the form researchers would prefer. Before abandoning the question, determine whether you can reduce identifiability, change the data source or level of analysis, or narrow the question without losing what you actually need to know.
Read Guide →A dataset may contain exactly the evidence your study needs and still be unavailable for legitimate research use. When access cannot lawfully or ethically be obtained, redesign the evidence strategy or research question rather than treating access restrictions as obstacles to bypass.
Read Guide →Some scientifically important questions cannot be tested through the most direct study because obtaining decisive evidence would require unacceptable harm, exposure, withholding, intrusion, or another ethical compromise. The question may still matter, but researchers must distinguish its importance from what ethical evidence can actually establish.
Read Guide →Ethical problems do not always require changing the research question. But when every acceptable method changes the evidence, population, construct, or inference needed to answer it, the ethical constraint has reached the question itself.
Read Guide →Low risk does not automatically make a study ethically worthwhile. When research asks people to contribute time, information, or effort but has little realistic prospect of producing useful knowledge, its ethical justification may be weak.
Read Guide →The possibility that research could stigmatize a population does not automatically mean the question should be abandoned. Researchers should assess whether the question is necessary, how groups are framed, what evidence is required, and whether foreseeable harms can be reduced without destroying the study's value.
Read Guide →Privacy constraints usually call for redesign before abandonment. A research idea may need to be dropped, however, when every feasible design requires unjustified intrusion or when necessary protections leave the study unable to answer its question credibly.
Read Guide →Ethical safeguards sometimes prevent researchers from using the method that would provide the strongest answer. That is acceptable when the remaining design still produces useful evidence, but not when ethical limitations leave a study predictably unable to answer a worthwhile question.
Read Guide →Every research study needs boundaries. Learn how to define what your study covers, justify what it deliberately excludes, and distinguish delimitations from limitations you cannot fully control.
Read Guide →Scope describes what your study covers, delimitations are boundaries you deliberately set, and limitations are constraints or weaknesses that affect what your study can establish. Learn how to tell them apart without treating every boundary as a flaw.
Read Guide →The scope of a research study defines the territory the investigation actually covers. Depending on the study, this may include the population, setting, timeframe, variables or phenomena, context, and other boundaries needed to show exactly what the research addresses.
Read Guide →A research scope should be narrow enough for the question to be answered rigorously with the available evidence, time, access, expertise, and resources, but not so narrow that the resulting question loses significance. The right scope is therefore a balance between feasibility and meaningful contribution.
Read Guide →A study may be trying to answer too much when its questions collectively require substantially different populations, evidence, methods, constructs, or analyses that cannot all be handled rigorously within one coherent and feasible design. The problem is not complexity itself, but whether the project can still produce convincing answers to its central question.
Read Guide →Population, place, time, variables, and context are common dimensions of research scope, but they are not five boxes every study must fill. Specify the boundaries that materially determine what your research question covers and how its findings should be understood.
Read Guide →Leave something out of a study when it is not necessary to answer the research question, falls outside the phenomenon or population of interest, or adds complexity without sufficient methodological value. Exclusion should sharpen the inquiry without removing evidence the study actually needs.
Read Guide →Excluding a population or variable can be methodologically justified when the exclusion follows from the research question, protects participants, improves measurement or comparability, or serves another defensible design purpose. The key question is what the exclusion does to the evidence and the conclusions you intend to draw.
Read Guide →Narrowing the scope can improve a study when it removes unnecessary complexity while preserving what is needed to answer the research question. The goal is not a smaller study for its own sake, but a more coherent match among the question, evidence, methods, and claims.
Read Guide →A study's scope can sometimes change after research has begun, but the later the change occurs, the more carefully its methodological, ethical, analytical, and reporting consequences must be considered. Legitimate revisions should be documented transparently rather than rewritten as though they had always been planned.
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