Diplomas yok ki , diplomasiden anlasn . <| sep |> Huge fight for Barnatt , if he gets the win I can ' t imagine he doesn ' t go back to he UFC . <| sep |> Yeah , it ' s a team game . That ' s why it ' s okay when people get boosted to masters . <| sep |> Sure you can . You play two games , and whomever performs best wins . It ' s just a question of not only defining best as winning the match . <| sep |> No worries , and I appreciate the difficulty of asking a seemingly charged question but intending neutrality the way your original question was worded brought to mind a number of different theories or areas of social science research , and it was difficult to pin down . So , for your first point , there is not specific research I am aware of that could measure that sort of thing directly , as the causal mechanism the leader ' s espousal of an opinion would be extremely difficult to isolate from an entire universe of other potential causes . What this does bring to mind , however , is a body of research known as Agenda Setting in Public Policy research . Broadly , this is a theory which describes how different problems or policy alternatives get pushed from the available pool to the ultimate decision making process , and leadership plays an important role in the promotion of problems . Classics in this area are P o l i c i e s E p i l o g u e C l a ssicsPoliticaldprrnXrefsr 12 ? sbooksieUTF 8 qidtelsr 12 k e y w o r d s k i n g d o n a g e n d a s a l t e rnativesandpublicpolicies and Cobb and Elder 1983 A m e r i c a n P o l i t i c s R o g erCobbdptelrefdpobtitlebk . On your second point , while a number of other strands of social science research come to mind , I ' m not sure there ' s anything on point that would provide much clarity . The core of the problem with these claims e . g . Rhetoric used in the 2016 US Presidential Election causes a spike in recruitment for extremist organizations in the Middle East , and what makes them difficult to answer is that there are too many variables to control for which makes it difficult to get leverage on the problem or a ' clean ' answer . I hope this helps ! edit minor clarityspecificity