Recall
To evaluate the effects of the knowledge intervention on recall performance, we ran a multilevel binomial logistic model with Participant as a random intercept effect, and a random slope effect of Time predicting our recall composite variable (average number of A1 and A2 units identified in each free recall response, see Method). In this model, Group, Time, Activity, and their interactions predicted recall. This model (seen in Fig. Mean composite recall performance plotted separately for the Gyoza (left panel) and Tai chi groups (right panel) by activity. Error bars represent one standard error of the mean.