Answer:
Selection
Explanation:
Their post- test performance might be affected by this learning experience that occurred while they took the pretest. Statistical regression is another threat that oc- curs only if participants are selected on the basis of their extreme scores.
The answer is C because Europe wanted to keep a monarchy
A or the first answer is correct have a good day
Yes the nonviolent meetings and the lunch counter sit-ins were effective in the desegregation campaign for social change.
<h3>The desegregation campaign</h3>
This campaign was launched on the 3rd of April with a lot of non violent meetings, marches and boycotts.
This took place during the Birmingham campaign. These boycotts led to a crippling of business for the merchants.
Even though it took a while, the segregation laws were overturned.
Read more on segregation here:
brainly.com/question/12498653