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Table 1 Item response theory parameters of the full GRM for each item of the Compassionate Love for Humanity Scale (CLS-H)

From: A revised short version of the compassionate love scale for humanity (CLS-H-SF): evidence from item response theory analyses and validity testing

ItemsItem Response Theory Parameters
 ab1b2b3b4b5b6
11.83− 2.49− 1.64− 1.09−0.520.501.53
21.71−2.63−1.65−1.04−0.360.571.70
32.51−2.40− 1.62− 1.23− 0.770.001.00
42.12−2.40− 1.72−1.23−0.700.111.14
51.97−2.92−1.72− 1.07− 0.370.801.87
62.15−2.45−1.59− 1.07− 0.440.391.46
71.29−2.58− 1.36−0.530.451.332.20
81.41−2.87−1.82− 1.11−0.081.022.35
92.52−2.57−1.78−1.31−0.740.081.22
102.01−3.05− 2.02−1.26−0.550.351.27
111.47−2.76−1.71−0.820.091.132.26
122.41−2.37−1.78− 1.25− 0.680.341.53
131.94−2.59−1.67−1.17−0.240.711.89
140.95−3.27−1.97−0.750.381.793.57
152.16−2.54−1.62− 1.02− 0.350.831.90
161.28−3.79−2.63−1.66− 0.850.311.72
171.56−3.36−2.28−1.51− 0.790.261.62
18a1.37−2.71−2.10−1.18−0.051.50 
19a1.37−2.93−2.06−1.06−0.121.33 
201.01−3.94−1.99−0.910.351.833.40
21a1.46−2.95−2.22−1.54−0.610.67 
  1. Note: a discrimination parameter, b threshold parameters; GRM graded response models. Bold indicates the item selected for the shortened scale using the information method. aThe first two response options were collapsed due to the low frequency of the first response category