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This was a validation study of the Norwegian version of The Interprofessional Collaborative Competency
Attainment Survey (ICCAS). ICCAS consists of 20 retrospective pre- and post-questions, where respondents
rate their agreement with regard to self-assessed competencies after participating in interprofessional
education courses. It has been validated across various settings. The questionnaire was translated
using the back-translation technique. We investigated evidence of validity regarding content, response
process, and internal structure. Data were obtained from health and social care students (n = 1440,
response rate 42.8%) participating in 12 different interprofessional courses in seven education institutions
in Norway using a cross-sectional design. Exploratory factor analysis indicated one retracted factor for prescores
and one retracted factor for post-scores. High McDonald’s omega values indicated good internal
consistency. Item deletion did not improve the scale’s overall consistency on pre- or post-scores. We
observed higher mean post-scores than pre-scores with moderate-to-large effect sizes, indicating
a positive change in self-assessed interprofessional capabilities after training. Our findings indicate that
the Norwegian version of ICCAS is a valid tool that may be implemented across a wide range of
interprofessional education courses. Finally, our findings support earlier recommendations that ICCAS
should be analyzed at an overall level to address change in interprofessional capabilities.