Seven subjects completed all six (2 representation x 3 presentation) test conditions. Because of the study's repeated measures design, the data set consists of a total of 4736 decision events (DEs). 2982 DEs were ECG decisions; 1754 were BP decisions. 1470 ECG DEs concerned abnormal rhythms, while 1512 ECG DEs were about NSR. The 2982 ECG DEs were evenly split between the WF and 3D representations-2354 DEs each-and among the 90-D, 0-D and HS presentation alternatives-994 each. The large number of repeated samples generated data that were nearly normal by inspection of histograms, even within subgroups, though because of the small number of subjects, formal tests of normality were not done.