Fig. 2From: Using the Rasch measurement theory to assess the psychometric properties of the Hopkins Symptom Checklist-10 in adolescentsItem-characteristic curve for item 6 in Ungdata 2018 (reduced sample, n = 900). ChiSq[Pr] Chi Square probability, FitRes fit residual: the difference between the response to an item and the expected value according to the model, Locn location, item location estimate, Spread spread of the thresholdsBack to article page