Response patterns of the Spanish version of the 49-item short form of the Addiction Research Center Inventory after the use of sedatives, stimulants,and opioids

This report examines the validity of the Spanish version of the 49-item sho rt form of the Addiction Research Center Inventory (ARCI) for measuring sub jective effects after the use of sedatives, stimulants, and opioids. Data f rom four clinical trials in which this questionnaire was used have been ana lyzed. The Spanish ARCI short form was found to be sensitive in measuring s ubjective effects after the administration of alcohol, triazolam, and fluni trazepam (sedatives), cocaine (stimulants), and morphine, pentazocine, and naloxone (opioids) and to distinguishing among them. The response patterns were similar to those previously reported for the same drugs with the Engli sh version of ARCI. It is concluded that Spanish version of the 49-item sho rt form of ARCI is a valid instrument for assessing the subjective effects of psychoactive drugs in the Spanish-speaking population context. (C) 1999 Elsevier Science Ireland Ltd. All rights reserved.