Two standardized questionnaires were used, Illness Perception Questionnaire-Revised (IPQ-R) and Short Form Health Survey (SF-36) amongst seven background questions.
Tveir staðlaðir spurningalistar voru notaðir í rannsókninni, Illness Perception Questionnaire-Revised (IPQ-R) og Short Form Healt Survey (SF-36) að viðbættum sjö bakgrunnsspurningum.