163 F. Supp. 3d 492
E.D. Tenn.2016Background
- Plaintiffs Lisa Trout and Mark Taylor (Knox County teachers) challenged Tennessee’s use of the Tennessee Value-Added Assessment System (TVAAS) in teacher evaluations and the county APEX bonus program after low TVAAS-based ratings reduced or eliminated their annual bonuses.
- TVAAS converts value‑added test statistics (based on TCAP scores and five years of student history) into five qualitative levels; levels ±1 correspond to ~68% confidence and ±2 to ~95% confidence. Plaintiffs argued reliance on 68% confidence and small sample-driven scores is unreliable for high‑stakes decisions.
- Knox County’s APEX bonuses depend in part (35%) on individual TVAAS scores; teachers with fewer than six tested students receive school‑ or system‑level TVAAS (25% weight) instead of individual scores.
- Trout alleges she was incorrectly given an individualized TVAAS score based on Algebra II students (she was not endorsed for that course) and lost a bonus, and missed the grievance deadline; Taylor alleges his individualized TVAAS scores were based on a small subset of his students (22 of 142) or on students taught under a non‑aligned curriculum and lost bonuses despite strong observations.
- Defendants moved to dismiss under Rule 12(b)(6). The court treated the challenge as constitutional (substantive and procedural due process and equal protection) and state law (breach of contract, Tennessee Constitution) claims.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Substantive due process: Do TVAAS‑based bonuses implicate substantive due process? | TVAAS is too imprecise/arbitrary to deprive them of property (bonuses/continued employment) without violating substantive due process. | APEX bonuses and related contractual benefits are not the kind of fundamental/state‑created rights protected by substantive due process; rational basis applies. | Dismissed: plaintiffs failed to allege a protected interest triggering substantive due process; even on the merits TVAAS passes rational‑basis review. |
| Rationality of TVAAS statistics (confidence levels, re‑estimation, small samples) | Reliance on 68% confidence and recalculation/large standard errors renders the system arbitrary and irrational. | Use of 68% confidence and five‑year re‑estimation is rationally related to legitimate goal (improving instruction); statute may reasonably set a six‑student threshold. | Dismissed: rational basis satisfied; no constitutional requirement of statistical significance. |
| Equal protection (classification by number/tested students; application to subset/non‑aligned students) | Treating teachers differently based on having ≥6 tested students or basing ratings on only a subset (or non‑aligned tested students) is irrational and discriminatory. | The classification is rationally related to reliability of statistical estimates and legitimate educational goals; incremental policy choices are permitted. | Dismissed: rational basis satisfied; as‑applied and facial challenges fail. |
| Procedural due process (grievance/meaningful review) | State/local procedures do not provide meaningful review of TVAAS data (data not available; grievance remedies inadequate), depriving teachers of property. | Evaluations and bonuses are either not protected property interests (state defendants) or are employment benefits remediable via state breach‑of‑contract remedies (county). Policy 5.201 limits grievance scope to procedural errors in data identification. | Dismissed: no protected property interest as to State for evaluations; bonuses are employment benefits addressed by state breach‑of‑contract remedies, so §1983 procedural due process claims fail. |
Key Cases Cited
- Ashcroft v. Iqbal, 556 U.S. 662 (Rule 8 / plausibility pleading standard)
- Bell Atlantic Corp. v. Twombly, 550 U.S. 544 (pleading must nudge claims from conceivable to plausible)
- Ramsey v. Bd. of Educ. of Whitley Cnty., Ky., 844 F.2d 1268 (6th Cir.) (employment benefit disputes are contract matters, not substantive due process)
- Sutton v. Cleveland Bd. of Educ., 958 F.2d 1339 (6th Cir.) (state‑created employment/tenure rights not protected by substantive due process in absence of fundamental right)
- F.C.C. v. Beach Commc’ns, Inc., 508 U.S. 307 (rational‑basis review is highly deferential; courts may not strike down laws on conjecture)
- Cleveland Bd. of Educ. v. Loudermill, 470 U.S. 532 (procedural due process property interest principles for public employment)
- Cook v. Bennett, 792 F.3d 1294 (11th Cir.) (value‑added measures can be capable of measuring some marginal teacher impact)
- Wagner v. Haslam, 112 F. Supp. 3d 673 (M.D. Tenn.) (discussion of TVAAS and incentives to teach to the test)