Cook AJ, et al. - Researchers sought to create a tool with minimal language dependence and literacy requirement for measuring functional interference due to chronic pain. The psychometric properties and usability of this new assessment scale, the Pictorial Pain Interference Questionnaire (PPIQ), was examined in a clinical sample of participants with chronic pain. Comparative analyses with existing self-report questionnaires demonstrated its excellent internal consistency reliability, good construct validity, and adequate-to-good convergent and discriminant validities. Outcomes provide initial support for the PPIQ as an alternative to language-based questionnaires for assessing functional interference from chronic pain.