Back to: Analyze & Synthesize Data

You might see systematic reviewers using other types of weights for their studies. For instance, they might decide to weight each study equally. In fact, you could weight by anything. Weights just reflect your values – what you think is most important when you’re combining your studies.

But in general, you’ll want to weight your studies by their precision.

Next, you’ll have to ask yourself: do these studies describe one true effect or multiple ones?