I'm planning to write a meta-analysis on a topic in which there are both clinical trials and structural equation modeling papers.
For clinical trials i can compute easily the effect size and analyze them with a fixed or random effects model, is there a way to calculate an effect size in a systematic way from a structural equation modeling result? Can i compute the effect size using the r of correlation in the models? Are there any reference regarding this approach?
I know that there are meta-analytic structural equation modeling approach but i want to conduct a "regular" meta-analysis with data from equation modeling studies