SPANISH VERSION OF THE 49-ITEM SHORT-FORM OF THE ADDICTION RESEARCH-CENTER INVENTORY (ARCI)

The Spanish version of the 49-item short form of the Addiction Researc h Center Inventory (ARCI) was assessed in simulated drug conditions. A fter the translation process was completed, the questionnaire was admi nistered to forty-five adult polydrug abusers who were residing in a g eneral hospital. Subjects answered the questionnaire on four occasions , describing the feelings they usually experienced under the effects o f four classes of drugs of abuse (morphine-like opioids, alcohol, stim ulants and hallucinogens). The scales showed an acceptable level of in ternal consistency. A characteristic pattern of response was obtained for each condition. A discriminant analysis revealed that four scales PCAG (pentobarbital-chlorpromazine-alcohol group), MBG (morphine-benze drine group), LSD (lysergic acid dyethylamide scale) and BG (benzedrin e group) significantly discriminated between the conditions studied. S ixty percent of the questionnaires answered were correctly classified according to the discriminant. functions constructed. The results from this study are similar to those obtained with the English ARCI, and s uggest that the Spanish version of the 49-item ARCI may be an useful i nstrument for the evaluation of subjective effects produced by psychoa ctive drugs in Spanish populations.