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Table 1 Item-total correlation and impact on Cronbach’s alpha if the items were deleted

From: SANRA—a scale for the quality assessment of narrative review articles

Item

Item-total correlation

Alpha if item deleted

Item 1

0.34

0.66

Item 2

0.34

0.67

Item 3

0.33

0.66

Item 4

0.40

0.64

Item 5

0.51

0.60

Item 6

0.58

0.58