Research of which approach to authentic leadership was conducted using interviews of successful leaders?

The answer is the George’s practical model. This is a research used for approaching leadership with the use of having to use interviews where in successful leaders are being interviewed to gain a more better understanding or basis in differentiating leadership.

you probably know the answer. stop asking stupid questions and making me waste my time. j.k. ; )   b.t.w. what are three ratios equivalent to 5 : 11? thx