Abstract
Background
Patterns of cognitive appraisal related to chronic pain may manifest differentially across time due to a variety of factors, but variability of injustice appraisals across time has not been examined. The current study details the validation of a brief, daily version of the Injustice Experience Questionnaire (IEQ), which measures injustice appraisals related to the experience of pain and disability.
Methods
IEQ items were adapted for daily use and evaluated using cognitive interviews, and the resulting measure was administered for 10 days to 2 Internet‐based samples of US adults with cLBP.
Results
Study 1 (N = 126) refined the 12‐item IEQ measure into a 6‐item short form; exploratory factor analyses suggested optimal model fit for the 2‐factor model established in the original IEQ. Using confirmatory factor analyses, Study 2 (N = 131) replicated the 2‐factor structure and demonstrated significant correlations of the Daily IEQ with other relevant constructs to chronic pain, such as pain catastrophizing, pain intensity, pain‐related activity and social interference, depressed mood, and anxiety. Daily IEQ items showed a significant degree of clustering (intraclass correlations ranging from .577 to .735) but demonstrated sufficient variability at the daily level to allow for daily‐level analysis.
Conclusions
Injustice appraisals show a sufficient degree of daily variability to warrant their measurement as a time‐varying construct. Further examination of antecedents and correlates of daily injustice appraisals, as well as their potential role as mechanisms of effect, may better explain the dynamics of affective and behavioral responses to chronic pain.
from Wiley: European Journal of Pain: Table of Contents https://ift.tt/36y2IpY
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