Why might meta-analyses of treatment trials be used in the context of intervention evaluation?

Question

Quizplus · Accepted Answer

Meta-analyses are primarily used to combine results from multiple studies to achieve a more comprehensive and statistically significant understanding of the effectiveness of interventions. This approach does not directly test the feasibility of new trials (A) or delve into the reasons behind the effectiveness of interventions (C), but rather focuses on quantitatively summarizing the evidence from existing trials.

Why Might Meta-Analyses of Treatment Trials Be Used in the Context