Yes. You have the right to know everything in your child's file. It's even possible, though I didn't dig hard enough to find out for sure, that they would have been required to get your written permission for the specific tests ahead of time.

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Texas Title 2, Education Code:

Sec. 26.004. ACCESS TO STUDENT RECORDS. A parent is entitled to access to all written records of a school district concerning the parent's child, including:(1) attendance records;(2) test scores;(3) grades;(4) disciplinary records;(5) counseling records;(6) psychological records;(7) applications for admission;(8) health and immunization information;(9) teacher and counselor evaluations; and(10) reports of behavioral patterns.
Added by Acts 1995, 74th Leg., ch. 260, Sec. 1, eff. May 30, 1995.

Sec. 26.005. ACCESS TO STATE ASSESSMENTS. Except as provided by Section 39.023(e), a parent is entitled to access to a copy of each state assessment instrument administered under Section 39.023 to the parent's child.

(from http://www.statutes.legis.state.tx.us/Docs/ED/htm/ED.26.htm)