Can a meta-analysis erroneously reach the conclusion that there is no difference or relationship?
A)Yes, when there are small sample sizes and/or possible methodological flaws.
B)Yes, because of its typically extra-large sample size.
C)No, a meta-analysis can never erroneously reach a conclusion of no relationship because a meta-analysis is so comprehensive.
D)No.If there is no relationship, then there is no erroneous conclusion to come to in the first place.

Question

Quizplus · Accepted Answer

Small sample sizes and methodological flaws can lead to biases and errors in the meta-analysis, leading to an erroneous conclusion of no difference or relationship when there may actually be one. The answer choice B is incorrect as the extra-large sample size of a meta-analysis does not guarantee accurate results. The answer choice C is incorrect as the comprehensiveness of a meta-analysis does not ensure accurate results. The answer choice D is incorrect as it assumes that no relationship exists, but it is possible for a meta-analysis to incorrectly conclude that no relationship exists when there actually is one.

Can a Meta-Analysis Erroneously Reach the Conclusion That There Is