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Author Question: Because a meta-analysis by definition combines the results of different studies, what problem is it ... (Read 112 times)

james

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Because a meta-analysis by definition combines the results of different studies, what problem is it particularly prone to?
 a. Simpson's Paradox.
  b. Collapsing results over an important third variable.
  c. Weakening or even reversing a relationship once groups of data are combined.
  d. All of the above.

Question 2

Under what conditions (if ever) should data from all the studies in a meta-analysis be combined into one single hypothesis test or confidence interval?



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patma1981

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Answer to Question 1

D

Answer to Question 2

THIS SHOULD NEVER BE DONE, UNLESS IT IS CLEAR THAT THE SAME POPULATIONS WERE SAMPLED AND SIMILAR METHODS WERE USED FOR ALL STUDIES INCLUDED IN THE META-ANALYSIS.

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james

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Reply 2 on: Jul 24, 2018
Gracias!


zacnyjessica

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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