Objective

2

To evaluate the reliability and stability of traditional Chinese medicine （TCM） syndrome scale for parkinson's disease （PD）.

Methods

2

This TCM syndrome scale was composed of 8 dimensions and 29 symptoms， and was used to collect data of 447 PD patients. The Cronbach's alpha of each dimension of the scale was calculated to evaluate the internal consistency； the correlation coefficient of each dimension was used to measure test-retest reliability； the correlation coefficient between each item and dimension was calculated to evaluate the content validity of the scale； and the exploratory factor analysis was performed to evaluate the structural reliability.

Results

2

The overall Cronbach's alpha of the scale was 0.730， and the overall split-half reliability was 0.734； the Cronbach's alpha of each dimension of the scale ranged from 0.589 to 0.902， and the split-half reliability value was between 0.411 and 0.823. The overall test-retest reliability value was 0.954. The correlation coefficient between each item and the corresponding dimension ranged between 0.704 and 0.895. In the factor analysis， the absolute value of the factor loading of each item in the scale was all greater than 0.5， and the communality of the corresponding dimension was between 70.5% and 90.5%.

Conclusion

2

The TCM syndrome scale for PD has high reliability and validity， which better satisfies the actual clinical needs and has good feasibility.