title: Rasch analysis of the Psychiatric Out-Patient Experiences Questionnaire (POPEQ).
authors.affiliation: Norwegian Knowledge Centre for the Health Services, Oslo, Norway. rolfvo@ils.uio.no
authors.forename: Rolf V
authors.initials: RV
authors.lastname: Olsen
authors.forename: Andrew M
authors.initials: AM
authors.lastname: Garratt
authors.forename: Hilde H
authors.initials: HH
authors.lastname: Iversen
authors.forename: Oyvind A
authors.initials: OA
authors.lastname: Bjertnaes