CERTIFICATION EXAMINATIONS.

(a) The board shall propose rules prescribing comprehensive examinations for each class of certificate issued by the board. The commissioner shall determine the satisfactory level of performance required for each certification examination. For the issuance of a generalist certificate, the commissioner shall require a satisfactory level of examination performance in each core subject covered by the examination.

(a-1) The board may not require that more than 45 days elapse before a person may retake an examination. A person may not retake an examination more than four times, unless the board waives the limitation for good cause as prescribed by the board.

(a-2) The board shall adopt rules that provide that in order to teach any grade level from prekindergarten through grade six a person must demonstrate proficiency in the science of teaching reading on a certification examination for each class of certificate issued by the board after January 1, 2021.

(b) The board may not administer a written examination to determine the competence or level of performance of an educator who has a hearing impairment unless the examination has been field tested to determine its appropriateness, reliability, and validity as applied to, and minimum acceptable performance scores for, persons with hearing impairments.

(c) An educator who has a hearing impairment is exempt from taking a written examination for a period ending on the first anniversary of the date on which the board determines, on the basis of appropriate field tests, that the examination complies with the standards specified in Subsection (b). On application to the board, the board shall issue a temporary exemption certificate to a person entitled to an exemption under this subsection.

(c-1) The results of an examination administered under this section are confidential and are not subject to disclosure under Chapter 552, Government Code, unless the disclosure is regarding notification to a parent of the assignment of an uncertified teacher to a classroom as required by Section 21.057.

(d) In this section:

(1) "Hearing impairment" means a hearing impairment so severe that the person cannot process linguistic information with or without amplification.

(2) "Reliability" means the extent to which an experiment, test, or measuring procedure yields the same results on repeated trials.

(3) "Validity" means being:

(A) well-grounded or justifiable;

(B) relevant and meaningful;

(C) correctly derived from premises or inferences; and

(D) supported by objective truth or generally accepted authority.