Windy River Elementary School

Boardman, OR · Grades 4–6

Pendleton-Hermiston, OR

Neighborhood

Decoded Rank

All factors combined

Middle 40% decoded

#15 of 34

Pendleton-Hermiston, OR schools

Performing as Expected

#439 in OR

Achievement Rank

Raw test performance

Bottom 15% achievement

#33 of 34

Pendleton-Hermiston, OR schools

#829 in OR

places from achievement to Decoded Rank

Raw achievement and decoded performance are both close to expected for this school's context.

Data confidence:High480 students tested 8 years99% participation

Confidence is computed from sample size, year coverage, and participation rate. Higher confidence means the rank shift is stable across years and not driven by a single small cohort.

  • Tested students: total students with valid scores across all reported years.
  • Years of data: number of school years included. More years smooths year-to-year noise.
  • Participation: share of enrolled students who took the assessment. Low participation can bias scores.

What's driving this rank

Decoded Rank: #15 of 34

in Pendleton-Hermiston, OR schools

Each component below is scored on a 0–100 within-metro scale. A qualitative band summarizes where the school lands.

  • LowPerforms above what its context predictsCounts for 35% of the rank

    After accounting for income and demographics, does this school beat what the data would predict?

  • StrongStudents gain ground year over yearCounts for 30% of the rank

    Are kids at this school learning faster than typical for the metro?

  • StrongEquity within the schoolCounts for 15% of the rank

    Are students clustered at similar levels, or split between top and bottom?

  • About averageDirection over recent yearsCounts for 10% of the rank

    Is this school's Decoded Rank trending up or down across the years we have data for?

  • StrongMost students were testedCounts for 10% of the rank

    Was the rank computed against a representative share of the school's students?

Show the numbersFor the methodology-curious

Each component is converted to a 0–100 within-metro percentile (100 = top of the metro). "Contribution" is the percentile-points the component adds to (or subtracts from) the metro median before the schools are re-ranked into the composite.

Per-component contributions to this school's Decoded Rank composite. Weight is the share each component carries; percentile is the school's within-metro score on that component.
ComponentWeightPercentileContribution
Performs above what its context predicts 35%6-15.4
Students gain ground year over year 30%90+12.0
Equity within the school 15%91+6.2
Direction over recent years 10%50+0.0
Most students were tested 10%99+4.9

Note: this school's Alpha-only Decoded Rank is #33 (vs the composite #15). The composite includes cohort progression and other signals that diverge from the context-adjusted Alpha. See methodology.

How the Decoded Rank composite is computed

Why trust this?
  • Public data sources
  • Context-adjusted model
  • Confidence shown
  • Methodology published

This score uses state assessment data, NCES enrollment data, and Census ACS 5-year neighborhood data. The Decoded Rank adjusts for school context — student demographics, ELL/SPED service rates, and the socioeconomic profile of the surrounding tract — and shows how the school performs relative to expectation, not in absolute terms.

SchoolDecoder is one signal, not a verdict. Decoded Rank is a context-adjusted residual, not a causal claim about teaching quality. See full methodology →

All Rankings

How this school ranks across the metro, state, and among demographic peers.

ScopeAchievementDecodedShift
Pendleton-Hermiston, OR (34 schools)#33#15
OR (882 schools)#829#439
Among similar schools (6 peers)#3#2

Resource context

School inputs, not ranking points

These fields describe the school and surrounding neighborhood. They help readers interpret the page, but this is not a dollar-by-dollar or ratio-by-ratio scorecard and the fields here are not components of the Decoded Rank.

Enrollment
241
Free/reduced-price lunch
67.6%
Student-teacher ratio
14.2:1
Locale
Rural, remote
School type
Regular public school
Enrollment model
Neighborhood attendance area
Neighborhood median income
$68,594ACS tract proxy
Neighborhood poverty
0.1%ACS tract proxy
SES index
32.7
Assessment data year
2025
CCD year
2024
ACS vintage
2020-2024

Within Morrow SD 1: #3 of 8.Top-40% in district. View district

Performance Spread

How students are distributed across the four state-assessment proficiency levels — L1: below standard, L2: approaching, L3: meets (proficient), L4: exceeds. This describes the shape of results at the school, not their height.

Students at this school cluster closely on the proficiency ladder.

  • Level 1 — Below standard61%
  • Level 2 — Approaching standard21%
  • Level 3 — Meets standard (proficient)14%
  • Level 4 — Exceeds standard4%

Performance Spread measures how evenly students are distributed across the L1..L4 proficiency ladder, treating the levels as an ordered scale (L1=1, L2=2, L3=3, L4=4) and weighting each by its student share. A school where most students cluster at one level has a TIGHT spread; a school split between the bottom and top has a WIDE or BIMODAL spread. Bimodal fires only when BOTH tails are non-trivial AND the middle is relatively hollow (pct_L1 ≥ 15, pct_L4 ≥ 25, pct_L2 + pct_L3 ≤ 60). It describes shape — NOT how high the school's scores are. Methodology

Nearby Schools

Sorted by distance. Both rank columns shown so you can compare quickly.

SchoolAchievementDecodedShiftStoryConfidence
Sam Boardman Elementary School#30#28Medium
Riverside Junior/Senior High School#28#32High
Morrow Education Center Rankings coming soon.
Irrigon Junior/Senior High School#29#31Medium
Irrigon Elementary School#17#13High

Similar Schools

Schools with comparable demographics, income, and size. Both rank columns shown for direct comparison.

SchoolAchievementDecodedShiftStoryConfidence
Alsea Charter School#20#17Medium
North Plains Elementary School#142#157Medium
Walker Elementary School#5#1High
McKay Elementary School#214#411Medium
Culver High School Rankings coming soon.

Historical Ranks

Year-by-year decoded and achievement ranks. Pandemic-affected years are excluded — we don't interpolate scores across the gap.

YearAchievementDecodedShift
2025#33#15
2024#31#22
2023#32#21

Note: assessment transitions (where a state changes its test) are footnoted on the methodology page; trends are not computed across breakpoints.

Trajectory

2023: percentile 92024: percentile 62025: percentile 6

Holding steady

Based on 3 years (2023–2025).

Slope: -1.5 pct/yr (95% CI -12.3 to 9.3)

Low confidence

How this works: we fit a linear trend across the available years of Decoded percentile, then bucket the slope into a direction. Wide confidence intervals (uncertain trends) collapse to Holding steady. See the methodology page for thresholds.

Cohort Progression

Kids who started 4th grade here in 2015 gained 6 proficiency points by 6th grade.

Based on 16 cohorts across math + ELA.

Learning rate: +8.0 proficiency points/yr (95% CI 1.8 to 14.3)

Medium confidence

Cohort 20152016201720182019202320242025 Slope
ELA · started 6th in 2015
G6
248
ELA · started 5th in 2015
G5
225
G6
211
-14.1
ELA · started 4th in 2015
G4
215
G5
259
G6
221
+2.8
ELA · started 4th in 2016
G4
180
G5
194
G6
204
+12.0
ELA · started 4th in 2017
G4
155
G5
185
G6
198
+21.5
ELA · started 4th in 2018
G4
191
G5
210
+18.6
ELA · started 4th in 2019
G4
195
ELA · started 6th in 2023
G6
188
ELA · started 5th in 2023
G5
159
G6
184
+25.9
ELA · started 4th in 2023
G4
154
G5
152
G6
181
+13.7
ELA · started 4th in 2024
G4
145
G5
157
+11.8
ELA · started 4th in 2025
G4
146
Math · started 6th in 2015
G6
200
Math · started 5th in 2015
G5
169
G6
178
+8.8
Math · started 4th in 2015
G4
211
G5
214
G6
210
-0.4
Math · started 4th in 2016
G4
165
G5
165
G6
190
+12.6
Math · started 4th in 2017
G4
161
G5
163
G6
193
+16.1
Math · started 4th in 2018
G4
196
G5
189
-7.9
Math · started 4th in 2019
G4
187
Math · started 6th in 2023
G6
165
Math · started 5th in 2023
G5
152
G6
170
+17.6
Math · started 4th in 2023
G4
176
G5
145
G6
153
-11.5
Math · started 4th in 2024
G4
171
G5
156
-14.9
Math · started 4th in 2025
G4
172

How this works: we follow each grade-cohort across years through the school (3rd graders in 2023 are 4th graders in 2024, etc.) and fit a linear slope on a 100–400 proficiency-points scale built from the state assessment's four levels (L1=1, L2=2, L3=3, L4=4, weighted by student share). This is the same construction Stanford SEDA uses (edopportunity.org/methods); it's not student-level tracking — we measure the school's cohort, not individuals. See the methodology page for thresholds.

Evidence & technical detailClick to expand

School Alpha

School Alpha is the residual between actual and expected performance once school context is held constant. It is a context-adjusted estimate, not a causal claim about teaching quality.

Shrunk Alpha (95% CI)
-0.73 (95% CI: -0.76 to -0.69)

SES index components

SES method
Blended SES index (ACS + FRL)
SES index value
32.7
FRL %
67.6%
ELL %
SPED %
Tract median income (ACS 5-year)
$68,594
Tract poverty rate
0.1%
Tract % bachelor's+
7.6%

What "Decoded Rank" means

Decoded Rank converts School Alpha — the context-adjusted residual — into a parent-facing rank within the metro pool. A higher Decoded Rank than Achievement Rank means the school's raw scores understate its performance once neighborhood and school context are held constant. The reverse means raw scores overstate it. The rank is one signal, not a verdict.

Data & sources

Assessment data
2024–25 school year
NCES CCD vintage
2024
Census ACS 5-year vintage
2020-2024
Last updated
May 29, 2026
Methodology version
0.2.0

SchoolDecoder publishes context-adjusted residuals, not causal estimates. Decoded Rank is one signal — not a verdict on teaching quality. Read about limitations →