Biostatistics & Research · single question
A benefit of a SYSTEMATIC REVIEW is that it:
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Correct answer: A. Synthesizes existing studies at relatively LOW cost (no new data collection)
- A. Correct. Systematic reviews aggregate and critically appraise existing primary studies, requiring no new (costly) data collection while providing high-level synthesized evidence.
- B. Incorrect. Internal validity belongs to individual well-designed RCTs; reviews summarize them.
- C. Incorrect. Reviews reduce but cannot eliminate all bias (e.g., publication bias).
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