Validation of the Adult Substance Abuse Subtle Screening Inventory-4 (SASSI-4)

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Abstract
The study objective was to develop a revision of the adult Substance Abuse Subtle Screening Inventory-3 to include new items to identify nonmedical use of prescription medications, as well as additional subtle and symptom-related identifiers of substance use disorders (SUDs) and to evaluate its psychometric properties and screening accuracy against a criterion of DSM-5 diagnoses for SUD. Clinical professionals throughout the nine US Census Bureau regions and two Canadian provinces who used the SASSI Online screening tool submitted 1,284 completed administrations of the provisional SASSI-4 along with their independent DSM-5 diagnoses of SUD. Validation sample findings demonstrated SASSI-4 sensitivity of 93% and specificity of 90%, AUC = .91. Items added to identify respondents who were abusing prescription medications showed 94% overall screening accuracy. Logistic regression showed no significant effects of client demographic characteristics or type of screening setting on the accuracy of SASSI-4 screening outcomes. In Study 2, 120 adults in recovery from SUD completed the SASSI-4 under instructions to fake good. Sensitivity of 79% was demonstrated for the full scoring protocol and was 47% when only face valid scales were utilized. Clinical utility is discussed.

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