 This study aimed to understand the considerations and views of insurance physicians in work disability assessments. The attitude, social norm, self-efficacy, ASC, model was used to develop measurement instruments for assessment behavior and its determinants. Factor analysis, reliability analysis and homogeneity analysis were used to form scale variables and dimension variables. The results showed that 29 scales with sufficient reliability were obtained and 19 dimensions emerged from the analysis. The scales and dimensions fitted with the concepts of the ASC model. The study suggests that the underlying ASC model is suitable for describing the assessment behavior of insurance physicians and the determinants of this behavior. The next step in this line of research should be to validate the model using structural equation modeling, and the predictive value should be tested in relation to outcome measurements of work disability assessments. This article was authored by Anima Johanasar, Muldis Hennie, Shellart, Antonius J.M., and others. We are article.tv, links in the description below.