Dear Mohammad,

following to your question, I guide you to read this article. this later carried out a multiple set of relations between public service motivation (PSM), org. commitment (oc), public performance (pp) and the antecedents. among these later, the authors have shown their use of Job diagnostic survey (JDS) of Oldham and Hackman (1976).

after reading this article you may find or not a relationship between JDS and OC.

GOOD LUCK.

Organizational Commitment, Public Service Motivation, and Performance within the Public sector.

Author(s): Emanuel Camilleri and Beatrice I. J. M. Van Der Heijden

Source: Public Performance & Management Review, Vol. 31, No. 2 (Dec., 2007), pp. 241-274 

Thanks Dr Tayeb for your answer. Unfortunately the same story keeps going and going. The study just provided an empirical evidence without good theoretical rationale. Social Exchange theory could be helpful in this regard, but it has its own limitations specially when it comes to the development process of commitment.