Measuring Pain-Related Behavioural Inhibition and Behavioural Activation System Responses

Author:

López-Martínez Alicia E.12,Esteve Rosa12,Sainero-Tirado Gloria1,Ramírez-Maestre Carmen12,Serrano-Ibáñez Elena R.12,de la Vega Rocío12,Day Melissa A.34,Jensen Mark P.4

Affiliation:

1. Facultad de Psicología y Logopedia. Universidad de Málaga

2. Instituto de Investigación Biomédica de Málaga-IBIMA (Spain)

3. School of Psychology. Faculty of Health and Behavioural Sciences. University of Queensland (Australia)

4. Department of Rehabilitation Medicine. University of Washington (USA)

Abstract

Objectives: 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 χ2 (5)=1.49, CFI=0.99, NNFI=0.99, RMSEA=0.051, 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. Discussion: 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. The other items from the PRS-SF assessing despondent, escape, and approach responses appear to provide at least adequate reliability. When used in this way, the PRS-SF may be used to measure BIS and BAS responses to pain to (1) provide further tests of the BIS-BAS model of chronic pain and/or (2) understand the potential mediating effects of BIS and BAS responses on the effects of psychological pain treatments to help determine which specific responses are most responsible for the benefits of treatment, and therefore which responses should be specifically targeted to enhance treatment response.

Publisher

Ovid Technologies (Wolters Kluwer Health)

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