Fig. 4

Wright person-item Rasch map for the CSE-CSC scale (n = 406). The right side of the figure showed the distribution of items, with the most difficult items at the top to the least difficult at the bottom. On the left side, the distribution represented respondents’ measured abilities, from the most capable at the top to the least capable at the bottom. The symbol of “#” represented 4 persons, and “.” represents 1–3 persons