Sec. 7. (a) As used in this article, "state agency" means:
(1) a department or office of the executive, including the administrative, branch of state government; and
(2) separately elected state officers and any department or office of separately elected state officers.
(b) The term does not include:
(1) the legislative branch of state government;
(2) the judicial branch of state government; or
(3) a state educational institution.