Fig. 1

Item characteristic curves (left panels) and item information curves (right panels) for the EOD measure (top), MDS (middle), and r-EDS (bottom). Item characteristic curves for the r-EDS characterize responses indicating any experience with the measured items (i.e., differentiating “never” from all other responses); item information curves for this measure reflect item information across all of the ordinal response options for each item. Different subscripts for θ are used to indicate the different latent variables represented by each measure