Dear R and statistics experts:
I have data of a behavioral experiment with the aim to investigate the effect of a memory task on motor learning. Question: I would appreciate help in figuring out a possible formula to determine whether motor learning across sessions differs between 2 groups. Design: - 2 Groups: group A: n=10 subjects, group B: n=10 - 6 motor learning sessions: baseline; immediately after memory task; 6h, 24h, 30d later, and 30d later with a different motor task - dependent variable: response time (RT) I tried the following: (lme4 package of R, I assumed that Subject is the random factor, and Session and Group the fixed factors.) fm1 <- lmer(RT ~ Session + Group + (1|Subject) + (1|Subject:Session), table) I would appreciate any help on the formula or the choice of statistical approach. Thanks! Marianne,Columbia SC [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.