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:
The correct answer is - true.
Explanation:
Aspects of body language such as facial expressions, gestures are important non verbal communication tools that help in detecting the emotion of an individual. Verbal communication tools are also important to detect emotions, however, Body language is more essential than verbal communication tools.
Facial expressions are helpful to recognize if an individual is happy, sad, that can easily experience on face of of a particular person.
Thus, the correct answer is - true.
Answer:
Vomiting persists for more than two days.
Diarrhea persists for more than several days.
Diarrhea turns bloody, black or tarry.
Fever is 101 F (38.3 C) or higher.
Lightheadedness or fainting occurs with standing.
Confusion develops.
Worrisome abdominal pain develops.
Explanation:
Answer:
1 hour and 3 times a week.
Explanation:
