Not at all validated. The questionnaire was leaning to much in a couple of directions only, and not enough in other directions. It seemed to me it wanted to find as many alcoholics and drug addicts and gamblers as possible. But the biggest flaw with the test even if it included questions for other disorders would still be unscientific because it would be entirely possible for the same person to take the test different times and achieve different results. So what good is it? For entertainment only