http://www.performwell.org/index.php/find-surveyassessments
https://hbr.org/2013/08/how-effective-a-leader-are-you
http://www.nwlink.com/~donclark/leader/transformational_survey.html
An article with the questionnaire and scoring instructions
https://www.psychologytoday.com/blog/cutting-edge-leadership/200903/are-you-transformational-leader