الخصائص السيكومترية لمقياس الصمود النفسي وفق نموذج مقياس التقدير لنظرية الاستجابة للمفردة
The study aimed to identify the psychometric properties of the psychological resilience Scale according to rating scale model for Item response theory, to achieve the objectives of the study a preliminary Likert Rating Scale of (49) items was constructed, the current study released on the descriptive approach. the scale was applied on a sample of (699) students in the bachelor’s stage at King Saud University, they were chosen by a convenience sample, the results revealed that (33) items obey the assumptions of the rating scale model as one of the response theory models that constitute the final from of the scale. the scale characterized by good psychometric properties, the scale achieved acceptable degrees of validity of the construct, since the values of the correlation coefficients between each item and the dimension to which it belongs were statistically significant at the level (0.01), and the inter-correlations between the dimensions and the overall degree of their scale were statistically significant at the level (0.01), as the value of reliability coefficient for the test using the coefficient of Cronbach’s Alpha was (0.94), in addition to that the results indicated that the persons and the items reliabilities which were estimated using the persons and items separation indices were (0.99),(0.94) respectively. The results showed that the scale presents the maximum amount of information for people with moderate ability, which fits to the expectancy values of the rating scale model for item response theory. (Published abstract)