Meta-analysis involves:
A) finding all studies published on a topic, contacting the authors of the studies to request their original data, and then analyzing all the obtained data in one large analysis of variance.
B) finding all studies published on a topic, calculating the effect size for each of those studies, and averaging the effect sizes together to find the average size of the effect across all studies.
C) averaging all the test statistics from every possible study on a given topic.
D) attempting to recreate the experimental conditions of every published study on a given topic.

Question

Quizplus · Accepted Answer

Meta-analysis involves finding all studies published on a topic, calculating the effect size for each of those studies, and averaging the effect sizes together to find the average size of the effect across all studies. This allows for a more comprehensive understanding of the overall effect of a particular intervention or factor. Option A is not always possible as authors may not have data available or may not respond to requests for data. Option C is not practical as it would require access to every possible study on the topic, which is unlikely. Option D is not typical for meta-analysis as it involves recreating experimental conditions rather than analyzing existing data from multiple sources.

Meta-Analysis Involves