1. (a) Because the educational diagnostician plays a critical role in campus effectiveness and student achievement the State Board for Educator Certification adopts the rules in this subchapter to ensure that each candidate for the educational diagnostician certificate is of the highest caliber and possesses the knowledge and skills necessary to improve the performance of the diverse student population of this state.
2. (b) Each individual serving as a educational diagnostician is expected to actively participate in professional development activities to continually update his or her knowledge and skills. Currency in best practices and research as related to both campus leadership and student learning is essential.
3. (c) The holder of an educational diagnostician certificate issued under the provisions of this chapter may serve as an educational diagnostician, including providing educational; assessment and evaluation, for students in early childhood programs through grade 12.

Source Note:The provisions of this §239.80 adopted to be effective April 28, 2002, 27 TexReg 3351; amended to be effective July 13, 2004, 29 TexReg 6645.