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.
This is consistent with the basic principles<span> of overload and progression. Resistance refers Page 3 176 </span>Fitness<span> for Life </span>fitness exercises<span> using PRE from level 3 of the Physical Activity Pyramid. Strength and endurance use resistance in different way</span>
Serious liver disease, serious body chemistry, mood changes, abnormalities, and serious blood problems,
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