Very troublesome. After the design is completed, it needs to be tested for reliability and validity. If it is not suitable, it needs to be modified, which is very time-consuming.

The best advice is to find a more mature scale that meets your research purpose and make appropriate changes after authorization, which is much more efficient than designing your own scale.

It is also simple to get authorization for the scale. You can email the author or consult the authorized platform. For example, Changxiao Medical Network has a large number of authorized scales, which can directly consult the platform.