My following paper may be useful for fetting insights and in developing construct for the study

The research should start with identifying the features of the transactional leadership by comparison with transformational leadership and see what contributions they have on employees. In my view, the most important one is the attitude toward a balance psychological climate and increasing job satisfaction and the workplace spirituality. While the transformational leadership is focused on organizational change and the motivation for more efforts, the transactional leadership is focused on the human side and increasing the comfort zone for all the employees. Thus, job satisfaction and working place spirituality can be variables to look for. Here, I agree with the previous answer which stresses the role of job satisfaction. I attached a book chapter which may help you in a better understanding of this issue. Good luck!

I believe you may consult the following article

Stephan J. Motowildo, Walter C. Borman & Mark J. Schmit (1997)

A Theory of Individual Differences in Task and Contextual Performance

Human Performance Vol. 10, Iss. 2, pp.71-83.

Hello I put you in touch with a researcher on this subject. her email address: [email protected]

The attached paper may be useful for you.

Thank you all for your insight and help. I am reading the recommended documents.