Some of the entries on the internet claim that the DLAB uses an artificial language as the basis for the test questions (or challenges). I believe this is incorrect. I took the dlab in 1976 at ft mccoy, wisconsin while attending a short security manager course. (I was in a reserve unit in Iowa). my impression of the test was that the problems (listening challenges) were from one or more natural languages, probably African languages, chosen because they would probably not be familiar to any of the candidates who took the test. I admit that this is a conjecture on my part. I would be interested in hearing from others who have taken the test. the major who told me my result on the test said simply that I had done damn well. I later learned that my score was 140. I felt pretty cocky until a sergeant in my unit told me that one my friends, also military intellence (and a linguistics teacher at the university of iowa) had scored 143. I would appreciate hearing from anyone who has ideas about this subject. fred covey, email email@example.com, tel. 770 389 9848.