A quantitative method that pools the results of many studies to estimate the overall effect size is known as what?

A quantitative method that pools the results of many studies to estimate the overall effect size is known as what?

• A. Meta-analysis
• B. Systematic review
• C. Pooling analysis
• D. Correlation meta

Answer: (A)

Pooling results from many studies to estimate an overall effect size is the product of meta-analysis. It takes the numerical results from individual studies and combines them with statistical methods, typically weighting each study by its precision and choosing a model that accounts for differences between studies. The goal is to produce a single, overall estimate of the effect (and its confidence interval) that reflects the collective evidence, rather than relying on any one study alone. A systematic review is related but broader: it involves a thorough search and critical appraisal of the literature and may or may not include quantitative pooling. The other terms aren’t standard labels for this specific quantitative synthesis.

Pooling results from many studies to estimate an overall effect size is the product of meta-analysis. It takes the numerical results from individual studies and combines them with statistical methods, typically weighting each study by its precision and choosing a model that accounts for differences between studies. The goal is to produce a single, overall estimate of the effect (and its confidence interval) that reflects the collective evidence, rather than relying on any one study alone. A systematic review is related but broader: it involves a thorough search and critical appraisal of the literature and may or may not include quantitative pooling. The other terms aren’t standard labels for this specific quantitative synthesis.