Background & Aims
The Pain Responses Scale and its short form (PRS-SF) were recently developed to assess the affective, behavioural, and cognitive responses to pain based on the Behavioural Inhibition and Behavioural Activation Systems (BIS-BAS) model of chronic pain. The purpose of this study was to provide additional tests of the psychometric properties of the PRS-SF in a new sample of individuals with chronic pain.
Methods
A sample of N = 190 adults with chronic non-cancer pain from Spain completed a translated version of the PRS-SF and a battery of questionnaires measuring validity criteria hypothesized the be associated with BIS and BAS activation, including measures of sensitivity to punishment, sensitivity to reward, pain intensity, pain interference, catastrophizing, and pain acceptance.
Results
Confirmatory factor analysis supported a 4-factor structure for the PRS-SF assessing despondent, escape, approach, and relaxation responses (S-B ?2 (5) = 1.49, CFI = .99, NNFI = .99, RMSEA = .051, AIC= 4113.66), with marginal internal consistency for one scale (Relaxation) and adequate to good internal consistency for the others. The pattern of associations found between the PRS-SF scale scores and the validity criterion support the validity of the instrument.
Conclusions
The results provide additional support for the validity of the four PRS-SF scale scores, and the reliability of three of the scales. If these findings are replicated in future research, investigators may wish to administer more items from the original Relaxation scale when assessing this domain to ensure adequate reliability for this scale.
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Presenting Author
Rocío de la Vega
Poster Authors
Alicia Eva López-Martínez
PhD
Universidad de Málaga, IBIMA Plataforma BIONAND, Malaga, Spain
Lead Author
Rosa Esteve. PhD
University of Málaga
Lead Author
Carmen Ramírez-Maestre
PhD
Universidad de Málaga, IBIMA Plataforma BIONAND, Malaga, Spain
Lead Author
Elena R. Serrano-Ibáñez
Universidad de Málaga
Lead Author
Rocío De la Vega
Ph.D.
University of Málaga
Lead Author
Melissa A. Day
PhD
Faculty of Health and Behavioural Sciences. University of Queensland (Australia).
Lead Author
Mark P. Jensen
PhD
University of Washington. Seattle, WA, USA
Lead Author
Topics
- Assessment and Diagnosis