Final answer:
Meta-analysis is a powerful methodological tool that involves evaluating the results of previous studies on a specific subject together. It provides a broader and more reliable understanding of the topic by analyzing a large body of evidence.
Step-by-step explanation:
Meta-analysis is a powerful methodological tool in research. It involves evaluating the results of previous studies on a specific subject together. By analyzing a large body of evidence, meta-analysis provides a broader and more reliable understanding of the topic at hand. It can help identify trends, patterns, and the overall effect size of a particular intervention or treatment. For example, in the field of medicine, meta-analysis can be used to assess the effectiveness of different treatments for a specific condition by combining the results of multiple studies.