Answer:
I think the guards fought each other
Explanation:
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>
"SNCC" played a major role in the sit-ins and freedom rides, a leading role in the 1963 March on Washington, Mississippi freedom summer, and the Mississippi freedom Democratic Party over the years . Hope I helped !
It means to laugh bitterly or sarcasticaly