Kohlberg's moral stages related to religion fundamentalism?

[SilviaTic]

Kohlberg studied the moral development of children. Many books were written about him/by him on moral issues.
The stages he mentioned are:
- Preconventional morality:
* Obedience and punishment orientation
* Individualism and exchange
- Conventional morality
* Good interpersonal relationships
* Maintaining the social order
- Post-conventional morality
* Social contract and individual rights
* Universal principles.
http://faculty.plts.edu/gpence/html/kohlberg.htm
http://www.aggelia.com/htdocs/kohlberg.shtml

Kohlberg and many others have found that many people don't get to the Final stage. Some even remain in the first one ("I do this because it's the law" , "I believe in this because it's written here")
There are many reasons why they don't get to the last one. Mostly environmental: nurture, culture, etc.
My question is: do you think religious people are so because of the moral stage they are in?
Do you know any books or references on this relationship?

[tangerine]

Absolutely! Many people do things a certain way, because their religious texts or religious leaders have taught them that that's the way things are done, and woe be unto the person who dares to question them!