Observer bias relates mainly to
"Researchers" whereas observer effects stem from
"participants".
Observer bias<span> which otherwise is known as experimenter bias or research bias etc. is an
inclination to observe what a researcher wishes to see. It states that the
researcher has a prior knowledge about the experiment group while observer effect
refers to the act in science when the act of observing will manipulate the experience
being observed.</span>
<span> </span>
Benjamin Rush, who encouraged more humane treatment of the mentally ill in the United States, used the tranquilizer chair and bloodletting as his principal remedies.
Option b
<h3><u>Explanation:</u></h3>
Dr. Benjamin Rush was elected to the chair of institutes where he was told to treat the poor. He was told they were the best patients. He designed two things for the treatment of the mentally ill. Through bloodletting process, few ml of blood will be removed from patient to remove blood.
One of which was the tranquilizing chair. The patient was made to sit there. This controlled the blow flow rate and heartbeat. It lessened the muscular activities and heartbeat rate. This slowly helped in helping the ill. It is an economical process for treatment.
Answer:
Image result for How do archaeologists know that the Harappan civilization in the Indus River valley was advanced?
Various elements of the Indus Civilization are found in later cultures, suggesting the civilization did not disappear suddenly due to an invasion. Many scholars argue that changes in river patterns caused the large civilization to break up into smaller communities called late Harappan cultures.
Explanation:
The answer is<u> "the game stage"</u>.
The game stage refers to the third and last stage of self-development.
In the game stage, children are associated with sorted out group exercises. Kids need to learn and take after set up amusement rules, find out about what their jobs are in the diversion, and realize what their colleagues' jobs are also. Children likewise need to take in the connection between the different jobs of the diversion members. This expects kids to have the capacity to accept the job of a few others in the meantime.