Instruments
BFIS
We employed three fidelity scales to assess the adherence to the national guidelines. The scales consist of 12–14 items rated from 1 to 5, where 1 equals no implementation and 5 equals full implementation.To measure basic family involvement and support (BFIS), the project group developed a new 14-item fidelity scale with two subscales. One subscale (BFIS-S) examines structure, content, and implementation, while the other (BFIS-P) measures ‘penetration rate’. The latter term means the percentage of eligible patients and/or relatives that receive a particular intervention. A description of the development process, content, and psychometric properties of the BFIS scale has been published (Hestmark et al., The 14-item family psychoeducation fidelity assessment (FPE) scale rates the practice and content of FPE, whereas the 12-item general organizational index (GOI) scale measures the individualisation, quality improvement, program philosophy, and penetration rate of FPE. Previous studies report acceptable psychometric properties for both scales (Bond et al., 