Psychometric evaluation of the perceived perioperative competence scale-revised among the Chinese operating room nurses: a methodological research

Yu, Qiaomeng; Wei, Ran; Wei, Yongting; Wu, Xiuhong; Liang, Tao

doi:10.1186/s12912-022-00853-x

Table 4 Item analysis of C-PPCS-R40 (n = 240)

From: Psychometric evaluation of the perceived perioperative competence scale-revised among the Chinese operating room nurses: a methodological research

Item	Mean ± SD	Coefficient of Variation	Item-total correlation	Critical Ratio (t value)	C²	Factor loading
Q1	3.24 ± 0.98	0.30	0.476**	−7.24*	0.860	0.887
Q2	3.25 ± 0.98	0.30	0.420**	−6.33*	0.746	0.838
Q3	3.41 ± 0.97	0.28	0.379**	−5.53*	0.685	0.803
Q4	3.13 ± 0.96	0.30	0.344**	−5.34*	0.677	0.761
Q5	3.33 ± 0.98	0.29	0.439**	−6.92*	0.658	0.796
Q6	3.22 ± 1.24	0.38	0.471**	−7.35*	0.727	0.776
Q7	3.25 ± 1.13	0.35	0.448**	−7.14*	0.642	0.729
Q8	3.23 ± 0.99	0.30	0.446**	−6.53*	0.764	0.818
Q9	3.51 ± 0.50	0.14	0.013	0.34	0.836	0.903
Q10	3.12 ± 1.44	0.46	0.422**	−6.51*	0.803	0.788
Q11	3.53 ± 0.50	0.14	−0.071	1.03	0.390	0.528
Q12	3.38 ± 1.24	0.36	0.416**	−7.20*	0.709	0.824
Q13	3.29 ± 1.25	0.38	0.480**	−7.87*	0.733	0.839
Q14	3.27 ± 1.23	0.38	0.472**	−7.96*	0.702	0.830
Q15	3.16 ± 1.35	0.43	0.505**	−8.81*	0.610	0.756
Q16	3.05 ± 1.49	0.49	0.442**	−7.28*	0.747	0.748
Q17	3.31 ± 1.21	0.37	0.515**	−8.69*	0.827	0.898
Q18	3.42 ± 1.23	0.36	0.328**	−5.34*	0.693	0.710
Q19	3.32 ± 1.18	0.35	0.338**	−5.64*	0.773	0.812
Q20	3.30 ± 1.13	0.34	0.345**	− 5.76*	0.791	0.878
Q21	3.25 ± 1.24	0.38	0.295**	−4.79*	0.759	0.761
Q22	3.47 ± 1.14	0.33	0.317**	−4.49*	0.738	0.796
Q23	3.48 ± 0.50	0.14	0.029	−0.53	0.743	0.853
Q24	2.87 ± 1.21	0.42	0.091	−1.51	0.625	0.779
Q25	2.92 ± 1.18	0.40	0.159*	−2.37*	0.911	0.948
Q26	2.91 ± 1.19	0.41	0.171**	−2.63*	0.866	0.925
Q27	3.42 ± 0.69	0.20	0.072	−0.15	0.559	0.725
Q28	2.79 ± 1.22	0.44	0.200**	−3.25*	0.725	0.839
Q29	3.47 ± 0.63	0.18	−0.002	0.87	0.786	0.871
Q30	3.39 ± 1.05	0.31	0.354**	−5.00*	0.842	0.879
Q31	3.41 ± 1.07	0.31	0.373**	−5.34*	0.845	0.894
Q32	3.29 ± 1.06	0.32	0.209**	−3.42*	0.582	0.605
Q33	3.21 ± 0.99	0.30	0.170**	−2.59*	0.905	0.936
Q34	3.24 ± 1.01	0.31	0.201**	− 2.72*	0.828	0.866
Q35	3.40 ± 1.08	0.32	0.149*	−2.53*	0.848	0.901
Q36	3.41 ± 1.02	0.30	0.209**	−3.62*	0.869	0.923
Q37	3.38 ± 0.99	0.29	0.257**	−4.29*	0.851	0.910
Q38	3.37 ± 1.03	0.30	0.191**	−3.21*	0.837	0.897
Q39	3.42 ± 1.09	0.32	0.230**	−3.64*	0.840	0.887
Q40	3.45 ± 1.11	0.32	0.024	− 0.09	0.586	0.726

C², communalities; CV=SD/Mean
^**p<0.01
^*p<0.05

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