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Table 3 The content validity of the CAS

From: Psychometric properties of the Coronavirus Anxiety Scale based on Classical Test Theory (CTT) and Item Response Theory (IRT) models among Chinese front-line healthcare workers

Item

Number giving a rating of 3 or 4

I-CVI

S-CVIAve

Item 1

4

0.800

0.920

Item 2

5

1.000

Item 3

4

0.800

Item 4

5

1.000

Item 5

5

1.000

  1. CAS Coronavirus anxiety scale