Having obtained local effect sizes within each assessment wave, the current question is whether smoking quantity or nicotine dependence has the greater effect across assessments. To calculate this, random effects must be held constant between RAB2 andRA2so that the change in variance after adding either smoking quantity or the nicotine dependence score reflects only a change in the variance due to fixed effects. This example thus extends the procedure described in example 1 to include random effects and repeated measures in the calculation of Cohen’s f 2.
