Which criterion is used when undertaking a meta-analysis? The results among the

Question

Which criterion is used when undertaking a meta-analysis?

The results among the primary studies in a meta-analysis must all be consistent.

All of the primary studies must have statistically significant results.

There needs to be a sufficiently large number of relevant primary studies.

All of the primary studies must have clinically significant results.

The results among the primary studies in a meta-analysis must all be consistent.

All of the primary studies must have statistically significant results.

There needs to be a sufficiently large number of relevant primary studies.

All of the primary studies must have clinically significant results.

Explanation / Answer

While opting for meta analysing a data, potentially serious problem exists when the synthesis is based on a small number of studies. Without sufficient numbers of studies we will have a problem estimating the between-studies variance, which has important impli- cations for many aspects of the analysis.

So the answer is (c)

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