Question about a Research Article

For a course, I need to superficially understand an applied statistical approach from a research paper. The article is located at Being a meta-analysis, my best guess is they used a weighted mean, with the inverse of the variance as the weight, for each variable they wanted to compare. The other statistics like standardized mean difference, Q, Tau², and I² are to verify the studies could be compared with some confidence. Am I correct in my understanding of how this study was conducted?
Thank you


Less is more. Stay pure. Stay poor.
Yes, this is likely correct. As mentioned, inverse variance serves to weight them fairly comparably to sample size!