Generalizable validity of defining characteristics is established through systematic reviews of defining characteristics that seek to identify clinical signs and symptoms allowing generalized interpretation of a nursing diagnosis across populations. These reviews are based on clinical construct validation studies of the same diagnosis conducted in different populations with similar methods and measures of diagnostic accuracy. To confirm this type of validity, meta-analysis techniques are applied to establish summary measures of sensitivity and specificity.

Key points

It requires systematic reviews of defining characteristics.
The reviews aim to identify clinical signs and symptoms that can be interpreted generally across different populations.
Evidence includes clinical construct validation studies of the same diagnosis in various populations using similar methods.
Studies must meet the criteria for clinical construct validity (level 2.3.3).
Generalizable validity is confirmed by meta-analysis, which provides summary measures of sensitivity and specificity.

How is generalizable validity of defining characteristics established according to the text?

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