Fig. 1
From: Validation of response processes in medical assessment using an explanatory item response model
Person-item map of Model 1. Note: The person-item map displays the location of personal abilities and item difficulties along the same latent dimension. The person parameter is located on the scale from left (low ability) to right (high ability). Locations of item difficulties are displayed with solid circles from the easiest on the left to the most difficult on the right