The Rasch analysis showed that the properties were satisfactory. No substantial DIF was found across gender and age

Satisfactory on the Item Level

The seven-item scale had robust psychometric properties in the scale level.

Satisfactory on the Scale Level

Smith College

- Deleted 3 more items
- The remaining 7-items were all satisfactory in both item and scale level
- Significance Correlation with HADS and PVDS

Results in Study of the "Fear of COVID-19 Scale"

Ahorsu, D.K., Lin, C., Imani, V. et al. The Fear of COVID-19 Scale: Development and Initial Validation. Int J Ment Health Addiction (2020). https://doi.org/10.1007/s11469-020-00270-8

The Fear of COVID-19 Scale: Development and Initial Validation

Item 3, Item 4, and Item 5 had low corrected item-total correlations and thus was deleted from the scale. The remaining seven items in the scale all had acceptable corrected item-total correlation.

Deleting Three Items

Satisfactory on Both Item and Scale Level

Concurrent validity, or evidence that can be gathered to defend the use of a test for predicting other outcomes, was supported as there was significant correlation between the result from the 7 items and the HADS and PVDS results:
- depression:  r = 0.425, p < 0.001
- anxiety:  r = 0.511, p < 0.001
- perceived infectability:  r = 0.483, p < 0.001
- germ aversion:  r = 0.459, p < 0.001

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