RESUMO
OBJECTIVE: Pilot study to assess psychometric indices of the screener and opioid assessment for patients with pain-revised (SOAPP-R©) with item response theory. DESIGN: Correlational. SETTING: Patients. OUTCOME MEASURES: The SOAPP-R©, the pain self-efficacy questionnaire (PSE-Q), and the patient health questionnaire-9 (PHQ-9) and a demographic -questionnaire. RESULTS: A three-dimensional model provided the best fit for the SOAPP-R© item responses, with scales entitled drug-alcohol concerns, pain medication, and emotional stress; reliabilities were 0.77, 0.71, and 0.80 for those three scales. Significant correlations were found with the PSE-Q, the PHQ-9, and the SPQ for the drug-alcohol scale but not for the two remaining scales. CONCLUSIONS: The SOAPP-R© showed invariance and support for validity, but with a three-dimensional scale structure.
