Those are descriptions on the unit cards. A partly reflexion of the statistics, which you can find in the EDU ( "export_describe_units" file in the data folder of EB ) file are those in the first part of the unit cards. You can expect an elite unit having at least a moral value of "15" ( good morale varies between 4-12; you got 11 for Hastati, 12 for Princeps, and 15 for Triarii, iirc, just as example ). Experience is only given by some buildings ( temples, special buildings etc. ), or can be gained through fighting.
This might help you a bit: http://europabarbarorum.heimstatt.net/index.php?