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Psychometric properties revised reinforcement sensitivity theory (r-RST) scale in chronic pain patients

Authors Amiri S, Behnezhad S, Azad-Marzabadi E

Received 11 January 2017

Accepted for publication 21 March 2017

Published 8 August 2017 Volume 2017:10 Pages 1879—1885

DOI https://doi.org/10.2147/JPR.S132133

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Amy Norman

Peer reviewer comments 2

Editor who approved publication: Dr E. Alfonso Romero-Sandoval

Sohrab Amiri,1 Sepideh Behnezhad,2 Esfandiar Azad-Marzabadi3

1Faculty of Literature and Humanities, Urmia University, Urmia, Iran; 2Faculty of Psychology and Educational Sciences, Kharazmi University, Tehran, Iran; 3Baqiyatallah University of Medical Sciences, Behavioral Sciences Research Center, Tehran, Iran

Objective: The aim of present study was to evaluate the psychometric properties of the Reinforcement Sensitivity Questionnaire (RSQ) in patients with chronic pain.
Methods: For this purpose, 312 (first study) and 70 (second study) patients with chronic pain were selected, and the Reinforcement Sensitivity Theory Personality Questionnaire (RST-PQ) and Pain Beliefs and Perceptions Inventory (PBPI) were distributed among them for their response. The reliability of the questionnaire was evaluated by Cronbach’s alpha, retest, and split-half coefficient; then, the criterion validity with other questionnaires was evaluated to determine the psychometric properties of the RSQ. The factor structure was assessed via confirmatory factor analysis.
Results: The results of the factor analysis indicated that the RSQ has five factors, and checking the validity by using Cronbach’s alpha, retest, and split-half coefficient reflected the stability of the scale; the criterion validity of the RSQ with other questionnaires showed desirable discriminant and convergent validity.
Conclusion: Overall, the findings indicated that the RSQ has good psychometric properties in chronic pain samples, and the tool can be used in studies of chronic pain. It seems that the RSQ is a good predictor for pain in patients with chronic pain.

Keywords: chronic pain, factor analysis, reinforcement sensitivity

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