I think the answer to that is being bias
<span>The family studies are the type of study that would be most likely to compare unrelated siblings living in the same household.
</span>
<span>The goal of the family study is to obtain in-depth
information on middle class, dual-career families and to understand the complex dynamics of today's families and the
strategies they use to balance the demands of work and family.</span>
Answer:
This is mainly because the wall's constuction resulted in many on-site deaths, and I believe also hard working conditions.
Explanation:
The one that was a national study of police practice is :
crime stoppers
It's a non profit organization working with the law enforcement
hope this helps