i've got to analyse some Data from an Experiment. The data are at the moment in e-prime. I'd like to have the accuracy, the hits and the false alarms for every subject. When i am at the anaylse window: 
1. Accurcy: i drop the subjects into the rows, and the Target ACC into the Data window. But do I take the ACC mean or the ACC count?

2. Hits: isn't it the same as accuracy? An if not, what is the difference?

3. False Alarms: do I just count the them? But how can I make it then comparable over different tasks (some tasks do have more trials than the others).

You see it's the first time for me to do Analyses with e-prime, so I'm happy for every answer and hints.Thank You!