Respuesta :
The correct option is C. The researcher used meta analysis kind of existing data.
Meta analysis is a statistical analysis that integrates the findings of various scientific investigations. When there are many scientific studies conducted by researchers to address the same issue and each one of the reports measures that are anticipated to have some degree of error, meta-analyses is usually conducted. The objective is then to utilise statistical methods to determine the pooled estimate that is the closest to the unobserved shared reality based on how this inaccuracy is perceived. The literature on evidence-based medicine holds that the results of meta-analyses are the most reliable source of evidence. Meta-analyses have the ability to compare study results from different ones and spot trends in study results, in addition to giving an estimate of the unknown impact size.
A researcher reviews 33 peer-reviewed research articles on the effectiveness of the DARE program and concludes that the overall program was associated with only a small effect size. What type of existing data design did this researcher use?
A.archival research
B.content analysis
C. meta-analysis
D.observational research
Learn more about meta analysis here:
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