Answer: Double blind clinical trial
Explanation:
The situation that is seen here is double blind clinical trail in which neither the participant nor the practitioner knows who is receiving the treatment.
This is used to prevent biasing in the experiment which is caused due to demand characteristics or placebo effect.
Here, in this situation the dog handlers and the experimental observer both were blinded to identify the breath sample.
Answer:
there isn't really an exact answer. Some people get diabetes genetically, but for the most part if you eat a lot of sugar overtime it will eventually lead to diabetes.
It's easier to understand the difference when you treat them as separate entities. Mental health is about mental wellness - we all have mental health. Mental illness is when someone is diagnosed with a mental disorder.