Table 6 Results of factor extraction by principal component analysis and the Cronbach’s alpha coefficients for the C-PPCS-R34 and each subscale

Foundational Knowledge and Skills (Item1,2,3,4,5,6,7,8)

15.52

0.921

Leadership (Item10,12,13,14,15,16,17)

13.84

0.913

Collaboration (Item18,19,20,21,22)

12.29

0.855

Proficiency (Item24,25,26,28)

9.57

0.899

Empathy (Item30,31,32,33,34)

9.26

0.792

Professional Development (Item35,36,37,38,39)

8.14

0.949

Total Scale

68.62

0.787