Complex sentence: It is important to analyze which disciplines are close kin because such analysis highlights the questions of what archaeology ought to study and in what ways: like the other social scientists, the New Archaeologists or processualists wanted to utilize scientific methodology in their work.
Split into simpler sentences: It is important to analyze which disciplines are close kin because such analysis highlights the questions of what archaeology ought to study and in what ways. Like the other social scientists, the New Archaeologists or processualists wanted to utilize scientific methodology in their work.