Third Party Software

Dear Dr. Cheung and colleagues,

We are trying to investigate the predictors of an outcome using longitudinal studies. Yet, there are some studies with only one or two predictors.

Is there an algorithm that allows us to handle missing correlation or remove those correlation matrices containing only one correlation coefficients?

Thanks for your time and patience.

I am conducting a meta-analysis comparing participants with two different diagnoses. All studies in the meta-analysis assess the linguistic construct of interest using both an expressive and a receptive subtask. We are not interested in the expressive vs. receptive contrast, so we would like to run an analysis that includes two (non-independent) effect sizes from each sample and gives us a *single* summary effect size for the construct of interest, rather than separate summary effect sizes for the receptive and expressive subtasks.