New Evidence of The Reliability of The Scale for The Assessment of Positive Symptoms of Cocaine Induced Psychosis (SAPS-CIP-R) in a Sample of Cocaine Users Treated at a Therapeutic Community.

OBJECTIVE

To assess the test-retest and inter-rater reliability of the Scale for the Assessment of Positive Symptoms of Cocaine Induced Psychosis (SAPS-CIP) in a sample of cocaine users treated at a therapeutic community.

METHODS

Cross-sectional study of a consecutive systematic sample of patients treated for cocaine-use disorder (n = 60) at a therapeutic community in Spain. Participants completed the SAPS-CIP and the Lifetime Severity for Cocaine Use Disorder scale (LSI-C).

RESULTS

Inter-rater reliability was strong, with 15 of the 17 SAPS-CIP items presenting weighted kappa values considered "excellent" and the remaining two items were "good." Test-retest reliability was good, with 12 of the 17 items presenting weighted kappa values considered "good," 3 "excellent," and two "fair."

CONCLUSIONS

These findings support the validity and reliability of the SAPS-CIP-R as a tool to measure and assess cocaine-induced psychotic symptoms. Further research is needed to determine the reliability and validity of instruments that assess CIP.