2.7. Statistical Analysis
Data from the paper and digital appetite surveys were analyzed using a mixed model repeated measures ANOVA with baseline values as a covariate for treatment effect (230 kcal vs. 460 kcal), method effect (paper vs. digital), session effect (first vs. second session), time effect (0–240 min), treatment by time interactions, treatment by method interactions, time by method interactions, and treatment by time by method interactions. Agreement between the paper and digital appetite surveys were analyzed using the Bland and Altman method, a diagnostic analysis for comparison of quantitative measurements from two methods [