Yes.
The "Judge Average Score" you see listed on your Team Detail Report is showing you how that specific judge was scoring for every entry for every category he/she judged at that contest.
For example, if judge X was presented with six entries each for the four main meat categories and they also judged 5 sauces and 3 desserts, their average would be computed like so:
JAS = (Total of all scores) / ((4 * 6) + 5 +3)
Really all the JAS does is give you a vague handle on whether that judge was "hot" or "cold" for that contest. Because the ancillaries are included in the calculation, it isn't terribly useful for that either, IMO.