The most valid of all the specific study types is:
A) cross-sectional study.
B) meta-analysis of randomized controlled trials.
C) expert opinions, editorials, rational conjecture.
D) In vivo research.

Question

Quizplus · Accepted Answer

Meta-analysis of randomized controlled trials is the most valid study type because it involves combining multiple studies that have used a similar design and methodology, which increases the statistical power and reduces the risk of bias. Randomized controlled trials are considered the gold standard of research designs as they involve the random allocation of participants to different study groups, which minimizes confounding variables and allows for causal inferences to be made. Meta-analysis utilizes statistical methods to combine the results of several studies, which offers a more comprehensive summary of the available evidence. Therefore, meta-analysis of randomized controlled trials provides the highest level of evidence for making clinical decisions.

The Most Valid of All the Specific Study Types Is