Answer:
Of the four parenting styles, the authoritative style is the one that is most encouraged in modern American society.
Explanation:
In the United States, sociology was first taught as an academic discipline at the University of Kansas in 1890, at the University of Chicago in 1892, and at Atlanta University in 1897.
Source (www.sparknotes.com/sociology/introduction-to-sociology/section1.rhtml)
Scientists should definitely use evidence - and they collect this evidence though especially designed experiments. Based on their data and assumptions they build models which they then test, but they can base their conclusions based on the models too.
What they should not do is based the conclusions on opinions, because opinions are not imparcial- they can state them as opinions, but not as conclusions.
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It should be A hope i helped