Greetings! How often should the reliability of a scale used to measure relapse behaviour of a drug user be assessed, and what factors should be considered?

Thanks a lot for your kind words too.

Wonderful! Thanks a lot for your prompt response.

The frequency of assessing the reliability of a scale used to measure relapse behaviour of a drug user depends on the research or clinical objectives, as well as the stability of the relapse behaviour being measured. Factors to consider include the length of the study, the severity of drug use, and the stability of the population being studied.