VALIDATION DATA

MEASUREMENT PROPERTIES
Limitations English only
Observations

There are two known studies examining the psychometric properties of the BAPQ. Eccleston et al examined the psychometric properties of the BAPQ in a population of 222 adolescents (aged 11-18 years) with chronic pain. Participants were recruited from two outpatient pediatric clinics focused on rheumatology and chronic pain, respectively. Of the total sample, 21.2% of participants had juvenile idiopathic arthritis; other diagnoses included headache, low back pain, and complex regional pain syndrome.

1. RELIABILITY
A. Internal Consistency Tested
Cronbach's (Describe)

Eccleston et al. showed that all Cronbach’s alpha values were satisfactory ranging from 0.79-0.89 in the rheumatology sample. Gagnon et al determined that  reliability coefficients for the individual subscales ranged from 0.81 - 0.87. 

B. Reliability intraobserver or test-retest Tested
Continuous scores: intraclass
correlation coefficient (ICC)
Dichotomus: Cohen kappa (Describe)

Eccleston et al showed evaluated test-retest reliability in a subset of 30 participants over a 17-day period. Reliability coefficients were calculated for each of the seven domains and separated between the rheumatology participants and those with chronic pain. Within the rheumatology sample, test-retest reliability ranged from 0.66 to 0.94 across the domains, with high correlations for the social function, physical function, and pain-specific anxiety domains. Internal consistency was also evaluated by subscale interrelatedness, with coefficients ranging from 0.34 to 0.79 in the rheumatology sample. The second study by Gagnon et al examined the psychometric properties in 110 children and adolescents (aged 8-18 years) in a pain management program. This study also examined subscale interrelatedness, with subscale coefficients ranging from 0.81 to 0.87.

C. Reliability interobserver or Measurement error Not Tested
Standard error of measurement (SEM),
smallest detectable change (SDC) or
Limits of agreement (LoA) (Describe)
2. VALIDITY
A. Content validity: face validity Not Tested
Expert opinion (relevance and
comprehensiveness) (Describe)
B. Construct Validity:
Structural validity
Not Tested
Hypotheses-testing Tested
Cross-cultural validity Not Tested
Brief Description
C. Criterion validity Not Tested
Comparison with a 'gold standard' Continuous scores:
correlations, ROC curves Dichotomus:
Sensitivity & Specificity (Describe)