This is a hairy area. Pardon me if I duck and run.
OK. Now that that is done, PLEASE NOTE these diagnostic instruments are linked here for informational purposes ONLY. A complete and accurate diagnosis requires an experienced and licensed (mental) health practitioner PERIOD. On the other hand, check it out. If you or someone you care about seems to have a problem, deal with it <!> (up to and including getting yourself/themself to a qualified addictions treatment professional).
###Alcohol Screening DOT org
AlcoholScreening.org provides a quick, scientifically valid questionnaire that assesses your drinking habits by age and gender. It is called AUDIT (Alcohol Use Disorders Identification Test) and was developed by the World Health Organisation to identify persons whose alcohol consumption has become hazardous or harmful to their health. It takes about two minutes, is completely anonymous and you can fill it out for yourself or someone you know. Feedback is then given based on your answers and links for additional information and getting help are provided.
###MAST — Michigan Alcohol Screening Test
The National Council on Alcohol and Drug Dependence (of San Fernando, Inc.) offers a paper and pencil version of the Michigan Alcohol Screening Test.
###Drinker’s Check-Up
Motivational Enhancement Therapy is an effective, scientifically valid treatment for drug and alcohol abuse. Reid Hester, PhD has been one of the people closely involved with this research. He and his colleagues offer the The Drinker’s Check-Up which is a comprehensive online assessment of someone’s drinking habits. It is NOT free.
<NB: SoberDreams.com has no financial connection to Drinker’s Check-Up.>
###Mental Health DOT com
Mentalhealth.com offers a service they call www.mytherapy.com which offers an online diagnostic service. The section for alcohol is free, the other diagnostic categories are not, but you can sign-up for one month only. They offer online diagnosis of most mental health problems.
<NB: SoberDreams.com has no financial connection to mytherapy.com.>
###CAGE Assessment (Alcohol Abuse)
Merck HealthInk Online offers the CAGE Assessment. It has four questions.
###Drug Abuse Screening Test
Shick Shadel Hospital of Seattle, Washington offers an online version of the Drug Abuse Screening Test (DAST). It takes perhaps two minutes to complete.