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Updated: Dec 10, 2025

Determining Pain Detection and Tolerance Thresholds Using an Integrated, Multi-Modal Pain Task Battery
Published on: April 14, 2016
A multidimensional Rasch analysis of the screener and opioid assessment for patients with pain-revised
Courtney Morris1, Kathy E Green2, Richa Ghevarghese2
1Department of Psychology, Longmeadow, Massachusetts.
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.
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