Table 2.

Univariate descriptive and CFA for the items CDI-S.

Item	Descriptive Statistics								CFA
	M	95% CI	SD	g 1	g 2	ritc	Floor	Ceiling	λ	h 2
Group A (anonymous)
Item 1	0.094	[0.01; 0.18]	0.353	4.032	16.751	0.43	92.5	1.90	0.740	0.548
Item 2	0.509	[0.38; 0.64]	0.521	0.168	−1.51	0.396	50	0.90	0.604	0.365
Item 3	0.179	[0.08; 0.28]	0.385	1.697	0.895	0.455	82.1	0.00	0.722	0.521
Item 4	0.17	[0.07; 0.27]	0.402	2.224	4.229	0.496	84	0.90	0.792	0.628
Item 5	0.094	[0.01: 0.18]	0.353	4.032	16.751	0.489	92.5	1.90	0.824	0.679
Item 6	0.557	[0.37: 0.74]	0.757	0.946	−0.603	0.313	60.4	16.0	0.377	0.142
Item 7	0.575	[0.45; 0.70]	0.515	−0.097	−1.505	0.235	43.4	0.90	0.448	0.201
Item 8	0.358	[0.23; 0.49]	0.52	1.009	−0.128	0.614	66	1.90	0.794	0.631
Item 9	0.321	[0.19; 0.45]	0.508	1.217	0.407	0.414	69.8	1.90	0.647	0.419
Item 10	0.123	[0.04; 0.20]	0.33	2.334	3.513	0.431	87.7	0.00	0.810	0.656
Group B (name of examinee)
Item 1	0.056	[−0.01; 0.12]	0.23	3.947	13.884	0.212	94.4	0.00	0.617	0.380
Item 2	0.544	[0.40; 0.69]	0.523	0.06	−1.462	0.475	46.7	1.10	0.601	0.362
Item 3	0.189	[0.08; 0.30]	0.394	1.617	0.627	0.247	81.1	0.00	0.575	0.330
Item 4	0.111	[0.02; 0.21]	0.35	3.289	11.138	0.453	90	1.10	0.757	0.574
Item 5	0.067	[−0.01; 0.15]	0.292	4.814	24.931	0.443	94.4	1.10	0.876	0.768
Item 6	0.556	[0.34; 0.77]	0.795	0.981	−0.692	0.086	63.3	18.9	0.156	0.024
Item 7	0.467	[0.33; 0.61]	0.524	0.376	−1.331	0.316	54.4	1.10	0.521	0.271
Item 8	0.356	[0.21; 0.50]	0.547	1.233	0.577	0.455	67.8	3.30	0.580	0.336
Item 9	0.378	[0.25; 0.51]	0.488	0.513	−1.777	0.296	62.2	0.00	0.323	0.104
Item 10	0.178	[0.07; 0.29]	0.413	2.193	4.15	0.35	83.3	1.10	0.685	0.469

g₁ and g₂: skewness and kurtosis coefficients; r_itc: item–test correlation; CFA: factor loadings (λ) of the confirmatory factor analysis; h²: squared factor loading.