251 F. Supp. 3d 1168
S.D. Tex.2017Background
- HISD implemented a data-driven teacher appraisal (2011–15) that used SAS’s proprietary EVAAS value‑added model to measure teacher impact on student standardized‑test growth and convert scores into categorical ratings.
- SAS’s source code, equations, decision rules, and underlying data are treated as trade secrets and were not disclosed to teachers; HISD did not verify or audit SAS’s scores and conceded teachers cannot independently replicate their EVAAS scores.
- HISD amended policies to permit nonrenewal/termination for “insufficient student academic growth as reflected by value‑added data” and set district goals to exit teachers rated ineffective by EVAAS.
- Evidence showed teachers were exited, resigned, or reassigned citing low EVAAS results; HISD provided limited EVAAS summary information (reports, linked student lists) but not the underlying algorithms or full comparative data.
- Plaintiffs (Houston Federation of Teachers and individual teachers) sued under 42 U.S.C. § 1983 alleging violations of the Fourteenth Amendment: procedural due process, substantive due process (rational‑basis and vagueness theories), and equal protection; HISD moved for summary judgment.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Procedural due process — access to information to challenge terminations | Teachers cannot meaningfully challenge EVAAS‑based termination because proprietary algorithms and full data are withheld, making independent verification impossible | HISD provided general explanations and reports; EVAAS is only one factor in hearings and SAS trade secrets need not be disclosed | Denied summary judgment for HISD — teachers face realistic threat of erroneous deprivation and Banks controls: withheld critical evidence prevents meaningful defense |
| Substantive due process — rational basis for using EVAAS | EVAAS is biased, volatile, unvalidated for many classes of teachers and thus not rationally related to the goal of effective teaching | Value‑added measures are widely used, academically supported by some, and a rational (even if blunt) tool to advance instructional quality | Granted for HISD — EVAAS passes rational‑basis review; district may use blunt statistical tools to pursue legitimate goals |
| Substantive due process — vagueness of EVAAS standards | EVAAS is a black box that does not give teachers notice how to conform conduct to avoid termination | Teachers receive notice of low EVAAS consequences and general descriptions of EVAAS; civil standards tolerate less specificity than criminal ones | Granted for HISD — not unconstitutionally vague; teachers had enough notice of the standard despite potential unfairness or error |
| Equal protection — alignment of instructional ratings with EVAAS | HISD’s practice of aligning instructional practice ratings to EVAAS creates unequal treatment of similarly situated teachers | EVAAS classification is rationally related to district goals; plaintiffs haven’t shown a problematic classification | Granted for HISD — claim fails because classification satisfies rational‑basis and plaintiffs’ allegations don’t fit an equal‑protection theory |
Key Cases Cited
- Banks v. Federal Aviation Admin., 687 F.2d 92 (5th Cir. 1982) (due process required access to lab samples when those tests were the only meaningful evidence supporting discharge)
- Cook v. Bennett, 792 F.3d 1294 (11th Cir. 2015) (value‑added model is at least a rational means to measure some teacher impact; rejected substantive due process challenge)
- Board of Regents v. Roth, 408 U.S. 564 (1972) (establishes property‑interest inquiry for due process)
- Cleveland Bd. of Educ. v. Loudermill, 470 U.S. 532 (1985) (public employees with property interests are entitled to pre‑deprivation hearing)
- Mathews v. Eldridge, 424 U.S. 319 (1976) (balancing test for what process is due)
- Fuentes v. Shevin, 407 U.S. 67 (1972) (procedural due process protects against substantively unfair or mistaken deprivations)
- Wagner v. Haslam, 112 F. Supp. 3d 673 (M.D. Tenn. 2015) (discussed limits of judicial review under rational‑basis for VAMs)
- Trout v. Knox Cty. Bd. of Educ., 163 F. Supp. 3d 492 (E.D. Tenn. 2016) (upheld use of TVAAS under rational‑basis review; described VAM as a blunt but permissible tool)