Table 3 Application of the checklist

How to apply the checklist

Step 1: Identify the main meaningful unit within the items of the instrument

Step 2: Check if the meaningful unit is consistent with any of the available concepts

Step 3: Link the meaningful unit to the most appropriate concept base on face validity

Step 4: Compute the total number of items in the scale that are link to each concept

Example of how an appraiser applies the checklist (using item 2 from WHOQOLBREF)

Item 2: How satisfied are you with your health?

Step 1: Main meaningful unit = Satisfaction with health

Step 2 & 3: Satisfaction with health = Consistent with ‘Satisfaction of needs (health)’

Step 4: Number of item = 1