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Table 3 Item analysis for the Perceptions Regarding Curriculum Organization and Preparedness for PGY Residency Training scales

From: Medical undergraduates’ self-evaluation: before and after curriculum reform

Item Number

Differentiation

Congeniality

Action

Critical ratio

Item-total Correlation

Corrected Item-total correlation

Cronbach’s α if item deleted

Scale Aa

 1

10.344***

0.688***

0.640

0.943a

Reserved

 2

8.993***

0.666***

0.618

0.943a

Reserved

 3

10.551***

0.715***

0.675

0.942a

Reserved

 4

11.820***

0.697***

0.653

0.942a

Reserved

 5

11.713***

0.736***

0.699

0.941a

Reserved

 6

11.180***

0.751***

0.714

0.941a

Reserved

 7

10.251***

0.682***

0.638

0.943a

Reserved

 8

7.502***

0.571***

0.524

0.944a

Reserved

 9

10.578***

0.747***

0.709

0.941a

Reserved

 10

11.088***

0.673***

0.626

0.943a

Reserved

 11

10.225***

0.737***

0.700

0.941a

Reserved

 12

10.150***

0.747***

0.706

0.941a

Reserved

 13

10.664***

0.740***

0.700

0.941a

Reserved

 14

9.605***

0.688***

0.647

0.942a

Reserved

 15

10.165***

0.754***

0.719

0.941a

Reserved

 16

13.238***

0.788***

0.757

0.940a

Reserved

 17

10.672***

0.777***

0.746

0.941a

Reserved

 18

10.965***

0.776***

0.740

0.941a

Reserved

Scale Bb

 19

10.683***

0.681***

0.613

0.906b

Reserved

 20

8.117***

0.529***

0.442

0.913b

Deleted

 21

11.792***

0.760***

0.714

0.902b

Reserved

 22

12.042***

0.712***

0.657

0.904b

Reserved

 23

10.922***

0.692***

0.636

0.905b

Reserved

 24

10.804***

0.704***

0.643

0.905b

Reserved

 25

9.150***

0.676***

0.602

0.907b

Reserved

 26

9.611***

0.672***

0.600

0.907b

Reserved

 27

12.897***

0.798***

0.744

0.900b

Reserved

 28

13.947***

0.783***

0.719

0.901b

Reserved

 29

14.331***

0.783***

0.721

0.901b

Reserved

 30

13.268***

0.772***

0.709

0.901b

Reserved

  1. aScale A: Perceptions Regarding Curriculum Organization; Cronbach’s α = 0.945
  2. bScale B: Preparedness for PGY Residency Training; Cronbach’s α = 0.912
  3. *** p < 0.001