To fit multidimensional models, multiple score lists are provided. Here, the score statement has three score lists after the codes list, so the model that is fitted will be three-dimensional. Items 1 through 8 and item 12 are on dimension one; items 9, 13 through 16 and 18 are on dimension two; and items 10, 11 and 17 are on dimension three. Because each item is assigned to one dimension only (as indicated by the zeros in all but one of the score lists for each score statement), we call the model that will be fitted when the above score statements are used is a between-item multidimensional model.
score (1 2 3) (0 1 2) (0 0 0) (0 0 0) ! items (1-8,12);score (1 2 3) (0 0 0) (0 1 2) (0 0 0) ! items (9,13-16,18);score (1 2 3) (0 0 0) (0 0 0) (0 1 2) ! items (10,11,17);
