Calculated M1 for mulilevel meta-analytic models
ml_m1(model)A named numeric vector of M1 heterogeneity values (a proportion-type index on the standard-deviation scale, bounded between 0 and 1). The first element, M1_Total, is the overall value across all random effects; each remaining element (named M1_<level> after a random-effect level of the model) is the value for that level.
Model object of class rma.mv or rma.