Two resting EEG sessions were completed each day, on four separate days with no fewer then 24 hours between visits, and with all four visits completed within a 14 day period (such that the fourth day is not more then 14 days after the first day).1 Nine participants attended fewer than all four EEG assessment days (N = 5 three days, N = 2 two days, N = 2 one day), but all subjects were included in mixed linear model analyses that successfully accommodated missing data (see Bagiella, Sloan, and Heitjan, 2000).
