metaanalízisre

Metaanalízisre, often shortened to metaanalízis, is a quantitative, formal, epidemiological study design used to systematically assess and combine the results of multiple independent primary studies addressing the same research question. It is a statistical technique that allows researchers to synthesize evidence from various sources to arrive at a more robust and precise conclusion than any single study could provide. The core principle involves pooling data from individual studies using statistical methods to estimate an overall effect size. This pooled estimate can reveal trends, identify inconsistencies, and increase the statistical power to detect an effect, especially when individual studies have small sample sizes or yielded conflicting results. The process typically involves a rigorous literature search to identify relevant studies, critical appraisal of their quality and risk of bias, data extraction, and statistical analysis to combine the findings. Metaanalízisre can be used to answer a wide range of research questions across various disciplines, including medicine, psychology, education, and social sciences. It is considered a high level of evidence, particularly when dealing with questions about the effectiveness of interventions or the strength of associations between variables.