FURTHER VALIDATION OF NEW SCALES MEASURING ADOLESCENT ALCOHOL AND OTHER DRUG-ABUSE

The Personal Experience Inventory (PEI) is a recently developed self-r eport inventory that measures problem severity and psychosocial risk f actors associated with adolescent alcohol and other drug involvement. Although previous studies have provided initial support for the psycho metric properties of the PEI, this validity evidence was based on unco ntrolled studies. The present study examined the concurrent validity o f the PEI on a new sample using more controlled research procedures. R esults indicated that the PEI Basic Problem Severity scales were signi ficantly related to groups defined by DSM-III-R criteria for substance use disorders and by treatment referral recommendations. Also, the ma in PEI Problem Severity scale, the Personal Involvement scale, correct ly classified a significantly greater proportion of participants into referral subgroups than would be expected given the base rates for the sample. This evidence provides additional support for the validity of the PEI as a problem severity measure of adolescent alcohol and other drug use.