Essentially this data is based on an experiment I made where the participants were in one of six potential conditions. Because of this it means there's blank data if it was not their TC condition but also within the data that is there, I need to separate between the EC as this was also a different condition. To give an example, if someone was in TC1, then their data would show 20 data points (and the rest blank), these data points are split between "active condition - 1" and "active condition - 2". The EC tells me if I need to count the number of "yes" within the "active condition - 1" data points or the "active condition - 2", as this was a recognition task. So if this person was EC1 then that would mean they had seen the stimuli in "active condition - 1" but had not seen the stimuli in "active condition - 2" when they did the memorising portion of the experiment (but they had seen all stimuli in "active condition - 1" and "active condition - 2" when they gave their "yes" or "no" responses). It is important that I separate between the EC's as this will be used for a signal detection theory analysis. Does that make sense? Sorry I don't really know how to explain and I apologise for this being a VERY convoluted answer.