Developing and validating the Sense of Agency Inventory for Visually Impaired Individuals

The present study aims to develop and validate the Sense of Agency Inventory for visually impaired individuals. So 400 visually impaired participants were selected via the convenience sampling technique. The 33-item inventory was developed for investigating the sense of agency using theoretical framework and the developed conceptual model. Then, three components of self-efficacy, optimism, and planfulness were considered as its subscales. After that participants completed the inventory and deleting defected copies, 400 copies were randomly selected. The data were investigated and analyzed by SPSS and AMOS software. As the result of confirmatory factor analysis and the rotated structural matrix via the principal component analysis (PCA) method, three items, two related to self-efficacy and one to optimism subscales, were deleted. Finally, the results of confirmatory factor analysis showed that the model enjoys favorable goodness of fit and can be used as an effective instrument in psychological research.