Initial Validation of IBD KNOW-IT: Measuring Patient and Caregiver Knowledge of a Child's Disease and Treatment Regimen.

The present study describes the development and initial validation of a newly developed measure of child and caregiver knowledge of the child's own IBD and treatment, called IBD KNOW-IT. One hundred and fifty-five children and their caregivers completed the IBD KNOW-IT as well as a scale designed to compare each dyad's perceived knowledge to their actual knowledge. Initial psychometric evaluation of IBD KNOW-IT was completed by conducting factor analysis and determining internal consistency, convergent validity, and associations with demographic and medical characteristics. Results supported the validity of a 12-item measure with 4 subscales including Symptoms, Medication Regimen, Disease Monitoring, and Medical Team. Support for the internal consistency of IBD KNOW-IT was obtained. Evidence of validity was demonstrated by significant correlations between child and caregiver scales, and high congruence between perceived and actual knowledge across all subscales. The reliability of the measure was demonstrated by good internal consistency and test-retest reliability. Preliminary psychometric evaluation suggests that IBD KNOW-IT is reliable and valid.