The Neck Disability Index is the most frequently evaluated question naire and shows positive results for internal consistency , content validity , structural validity , hypothesis testing , and responsiveness , but a negative result for reliability .
The other question naires show positive results , but the evidence for each measurement property is mostly limited , and at least 50 % of the information on measurement properties per question naire is lacking .
Purpose To critically appraise and compare the measurement properties of the original versions of  neck-specific question naires .
Comparison of the Neck Disability Index and the Neck Bournemouth Questionnaire in a sample of patients with chronic uncomplicated neck pain.
OBJECTIVE This study compares the sensitivity to change of the Neck Disability Index ( NDI ) and the Neck Bournemouth Question naire ( NBQ ) in patients with chronic uncomplicated neck pain . METHODS This prospect i ve longitudinal study was completed in an outpatient physical therapy clinic . Subjects , with uncomplicated neck pain ( no concurrent shoulder pain or nerve root symptoms ) for more than a 3-month duration , participated in a 4-week course of therapy that included moist heat , neck exercises , and either mobilization or massage . Outcome measures included st and ardized response means ( sensitivity to change ) , Cronbach alpha ( internal consistency ) , and 2-way Spearman correlations between the 2 question naires and between a pain Visual Analog Scale and each question naire ( convergent validity ) . RESULTS Mean ( SD ) score change of the NDI was 6.22 ( 5.12 ) , and of the NBQ , 14.00 ( 11.99 ) . St and ardized response means were 1.21 and 1.17 , respectively . Both question naires were more sensitive to change than the pain Visual Analog Scale ( 0.68 ) . There was moderate correlation between the change scores of all 3 outcome tools ( Spearman 0.46 - 0.57 ) . The NBQ had higher internal consistency than the NDI . CONCLUSIONS The NDI and the NBQ performed comparably in this group of patients with chronic uncomplicated neck pain . Both are sensitive to change and would be efficient outcome tools in studies of chronic neck pain . Both had acceptable internal consistency and are appropriate for use as single- outcome scales
The Neck Disability Index is the most frequently evaluated question naire and shows positive results for internal consistency , content validity , structural validity , hypothesis testing , and responsiveness , but a negative result for reliability .
The other question naires show positive results , but the evidence for each measurement property is mostly limited , and at least 50 % of the information on measurement properties per question naire is lacking .
Purpose To critically appraise and compare the measurement properties of the original versions of  neck-specific question naires .