Evaluation of reliability and validity of the Persian version of Peters et al. delusions inventory (PDI-40) in iranian non-clinical and clinical samples

Hosseini, Seyed Ruhollah; Nooripour, Roghieh; Ghanbari, Nikzad; Firoozabadi, Abbas; Peters, Emmanuelle

doi:10.1186/s40359-023-01341-w

Table 2 EFA of 40-items PDI-40 (n = 512)

From: Evaluation of reliability and validity of the Persian version of Peters et al. delusions inventory (PDI-40) in iranian non-clinical and clinical samples

Items			Factor Loading	Cronbach’s Alpha if Item Deleted	Corrected Item-Total Correlation	Eigenvalue
Items	M	SD	Factor Loading	Cronbach’s Alpha if Item Deleted	Corrected Item-Total Correlation	Total	% of Variance	Cumulative %
1	2.71	4.20	0.643	0.930	0.523	11.156	27.890	27.890
2	0.85	2.75	0.514	0.931	0.391	2.263	5.658	33.548
3	0.92	2.89	0.645	0.931	0.395	1.588	3.970	37.517
4	2.26	4.18	0.604	0.931	0.475	1.491	3.727	41.244
5	2.88	4.62	0.504	0.930	0.564	1.345	3.362	44.606
6	5.09	5.05	0.605	0.929	0.632	1.278	3.195	47.801
7	0.66	2.24	0.595	0.932	0.311	1.129	2.822	50.624
8	3.66	4.81	0.547	0.930	0.566	1.108	2.769	53.393
9	7.80	5.04	0.518	0.930	0.582	1.055	2.637	56.030
10	1.03	2.92	0.503	0.931	0.396	0.993	2.483	58.513
11	3.37	4.88	0.684	0.929	0.616	0.939	2.348	60.861
12	4.03	5.02	0.691	0.929	0.656	0.927	2.317	63.178
13	2.43	4.44	0.595	0.930	0.555	0.856	2.140	65.318
14	0.62	2.37	0.635	0.932	0.299	0.824	2.061	67.379
15	2.70	4.46	0.519	0.930	0.593	0.790	1.975	69.354
16	4.06	4.99	0.661	0.930	0.581	0.740	1.850	71.204
17	4.30	4.60	0.534	0.930	0.545	0.726	1.816	73.020
18	3.12	4.46	0.479	0.931	0.488	0.700	1.750	74.770
19	4.48	4.78	0.509	0.931	0.452	0.695	1.738	76.508
20	1.73	3.66	0.529	0.931	0.444	0.649	1.622	78.130
21	4.59	4.87	0.543	0.931	0.457	0.636	1.589	79.719
22	4.55	4.38	0.575	0.930	0.565	0.589	1.472	81.190
23	3.78	4.53	0.405	0.931	0.453	0.578	1.446	82.636
24	2.47	4.07	0.542	0.930	0.600	0.567	1.417	84.053
25	3.37	4.56	0.598	0.931	0.488	0.544	1.361	85.414
26	3.18	4.50	0.492	0.931	0.489	0.508	1.269	86.683
27	2.90	4.96	0.639	0.932	0.394	0.498	1.244	87.928
28	0.92	3.04	0.567	0.932	0.353	0.455	1.137	89.065
29	1.50	3.67	0.553	0.931	0.409	0.451	1.128	90.193
30	2.03	3.98	0.537	0.931	0.429	0.444	1.109	91.302
31	1.59	3.94	0.560	0.931	0.409	0.432	1.080	92.383
32	2.41	4.28	0.402	0.930	0.525	0.404	1.011	93.394
33	2.06	4.08	0.556	0.932	0.366	0.386	0.965	94.359
34	0.78	2.74	0.625	0.932	0.352	0.380	0.950	95.309
35	2.30	4.14	0.461	0.931	0.397	0.359	0.899	96.207
36	1.65	3.77	0.600	0.931	0.417	0.351	0.877	97.085
37	1.72	3.78	0.599	0.930	0.522	0.327	0.818	97.903
38	2.57	4.23	0.514	0.930	0.590	0.309	0.773	98.677
39	1.81	3.82	0.517	0.930	0.516	0.282	0.704	99.380
40	2.34	4.02	0.614	0.930	0.596	0.248	0.620	100.00

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