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Research Library · Research design

Reporting guideline versus study-design decision

Use reporting guidance to make a chosen design transparent. Do not use a checklist as a substitute for deciding which design can answer the research question.

Direct answer

A reporting guideline specifies information that should be reported for a particular research type. It does not decide the question, comparison, sampling frame, causal claim or design validity.

Separate two decisions

  1. Choose the design from the question. Define the decision, population, unit of analysis, comparison, time structure and claim before selecting a method.
  2. Select the reporting guidance from the design. After the design is clear, use the appropriate guideline to identify the minimum information readers need.
  3. Use the checklist during planning. Reporting items can reveal missing protocol details before data collection, but they do not repair a weak design.

Why the distinction matters

EQUATOR defines a reporting guideline as a checklist, flow diagram or structured text developed to guide reporting of a specific type of research. Its purpose is transparency and completeness. A well-reported convenience sample remains a convenience sample; a complete checklist does not convert association into causation or make an invalid measure valid.

Worked use case

A researcher chooses a cross-sectional survey because STROBE exists for observational studies. The correct sequence is the reverse: first determine whether a cross-sectional design can support the intended claim; then use the relevant reporting guidance to document the design transparently.

Evidence boundary

Reporting guidance can improve transparency, replication and evidence synthesis, but compliance is not a quality score and does not establish that the research question, analysis or inference is appropriate.

Primary sources

  1. EQUATOR Network. What is a reporting guideline? Retrieved 4 August 2026.
  2. EQUATOR Network. Selecting the appropriate reporting guideline. Retrieved 4 August 2026.