Psychometric properties of neck disability index - a systematic review and meta-analysis

CONCLUSIONS: The NDI demonstrated good internal consistency and test-retest reliability without floor or ceiling effect. In most situations, the NDI could be considered a unidimensional scale. The NDI well correlated with the common scales of pain and disability. The minimal clinically important difference and minimal detectable change were around 15% (7.5/50 points).PMID:38240027 | DOI:10.1080/09638288.2024.2304644
Source: Disability and Rehabilitation - Category: Rehabilitation Authors: Source Type: research