Assessment of learning before and after the workshops
REGRESSION
To evaluate the amount of information participants learned in the workshops, we compared pre- and post-test scores on an expertise survey. Prior to the workshops, all participants were novices in both activities (expertise survey scores < 10). The survey had a total of nineteen Tai chi questions and twenty gyoza-making questions; however, for these analyses, we removed three qualitative questions from each activity (e.g., “Who does the cooking in your house?”; “How experienced are you with any form of martial arts?”). Thus, we used data from sixteen Tai chi questions and seventeen gyoza-making questions in the following analyses.A multilevel binomial logistic regression was conducted with the fixed effects of Group (Tai chi group vs. Gyoza group), Time (pre- vs. post-test), Activity (Tai chi vs. Gyoza), and their interactions and random effects of Participant (intercept effect) and Time (slope effect varying for each participant) predicting the proportion correct on an expertise survey (with the proportion weighted by the total number of questions per activity). The predicted values from this model are in Fig. Mean performance on the expertise surveys plotted separately for the Gyoza (left panel) and Tai chi groups (right panel) by activity. Error bars represent one standard error of the mean.