Shadish, Cook, & Campbell discussed four problems with narrative reviews. Which of the following is NOT one of them?

Question

BlackTom AI · Accepted Answer

Shadish, Cook, & Campbell identified several limitations of narrative reviews that motivated more systematic and quantitative approaches.

1. Relevant knowledge points and concepts
- Narrative (traditional) reviews rely on qualitative synthesis and author judgment rather than formal aggregation.
- Common criticisms include imprecision, difficulty handling complex variable relationships, and trouble integrating large numbers of studies.
- Meta-analysis produces quantitative summary effect sizes (a single summary number), which narrative reviews typically do not.

2. Step-by-step reasoning process
- Examine each option against the authors’ stated problems with narrative reviews.
- A: Narrative reviews struggle with studies involving complex relationships — this matches their critique that narrative methods are poor at synthesizing multifactorial or conditional findings.
- B: Narrative reviews tend to describe results imprecisely — authors argue narrative summaries lack quantitative precision and clear effect-size estimates.
- D: More studies make coherent narrative synthesis harder — the authors note that larger bodies of literature increase selective emphasis and narrative incoherence.
- C: Narrative reviews reduce a field to a single summary number — this contradicts the nature of narrative reviews; producing a single summary estimate is a feature of meta-analysis, not a problem attributed to narrative reviews.

3. Calculations
- No numerical calculations are required for this conceptual question.

4. Why the correct answer is correct
- Option C is NOT one of the problems Shadish, Cook, & Campbell raised because narrative reviews do not typically reduce a research field to one numeric summary; instead, that reduction is precisely what meta-analysis does. Thus C is false relative to their critique.

5. Why the other options are incorrect (i.e., why they are actual problems)
- A is correct as a stated problem: narrative approaches have trouble integrating complex interactions.
- B is correct: narrative summaries often lack precision and quantification.
- D is correct: as the literature grows, maintaining a coherent narrative becomes more difficult and selective.

6. Conclusion
- Therefore the statement that is NOT one of the authors’ problems with narrative reviews is C. This matches the provided answer: C. Narrative reviews reduce a research field to a single summary number.

Shadish, Cook, & Campbell discussed four problems with narrative reviews. Which of the following is NOT one of them?单项选择题

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