Pioneer Elementary School

Shelton, WA · Grades ?–5

Shelton, WA

Neighborhood

Decoded Rank

All factors combined

2 stars

WA statewide rating — the rank below is this school's statewide position

Bottom 30% decoded

#1079 of 1502

plausibly #719–1213

Washington schools

#8 · Shelton metro

Achievement Rank

Raw test performance

Bottom 15% achievement

#1431 of 1502

Washington schools

#12 · Shelton metro

places from achievement to Decoded Rank

This school performs roughly as expected for its context.

Data confidence:High466 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: #1079 of 1502

in Washington schools

Raw test scores rank this school #1431, but after accounting for context, students here outperform what the data would predict. The Decoded Rank places it at #1079.

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 39% of the rank

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

  • Below averageStudents gain ground year over yearCounts for 33% of the rank

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

  • StrongEquity within the schoolCounts for 17% of the rank

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

  • StrongMost students were testedCounts for 11% 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 39%13-14.5
Students gain ground year over year 33%34-5.4
Equity within the school 17%95+7.5
Most students were tested 11%99+5.4

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 →

Strongest Subjects (Decoded)

Decoded rank first; achievement rank in parentheses. Sorted by decoded rank, best first. Science is shown for reference only and is not part of any rank, tier, or composite.

  1. Science

    2024 proficiency34.2%meeting standard

    Tested gradeGrade 5

    79 tested

    202229.7%202336.7%202434.2%

    Shown for reference only — science is not part of any rank.

All Rankings

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

ScopeAchievementDecodedShift
WA (1502 schools)#1431#1079
Shelton, WA (13 schools)#12#8
Among similar schools (6 peers)#1#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
492
Free/reduced-price lunch
65.2%
Student-teacher ratio
13.3:1
Locale
Rural, fringe
School type
Regular public school
Enrollment model
Neighborhood attendance area
Neighborhood median income
$60,298ACS tract proxy
Neighborhood poverty
21.8%ACS tract proxy
SES index
18.5
Assessment data year
2024
CCD year
2023
ACS vintage
2020-2024

Within Pioneer School District: #2 of 2. 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 standard55%
  • Level 2 — Approaching standard24%
  • Level 3 — Meets standard (proficient)15%
  • Level 4 — Exceeds standard6%

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.

SchoolRatingAchievementDecodedShiftStoryConfidence
Pioneer Virtual AcademyRankings coming soon
Pioneer Middle School#9#7High
Southside Elementary#2#4High
Cedar High School#1#1HSHS outcomeHS pool
Shelton Open DoorsRankings coming soon

Similar Schools

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

SchoolRatingAchievementDecodedShiftStoryConfidence
Evergreen Elementary#420#475High
Marcus Whitman Elementary#13#4High
Coweeman Middle School#15#18Medium
Jason Lee Elementary School#19#32High
Cascade Middle School#18#19High

Historical Ranks

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

YearAchievementDecodedShift
2024#12#8
2023#10#9

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

Trajectory

Not used in the Decoded Rank — shown for context only.

2023: percentile 332024: percentile 31

Trending down

Based on 2 years (2023–2024).

Slope: -2.6 pct/yr (no CI — too few years)

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 3rd grade here in 2023 gained 45 proficiency points by 4th grade — gaining while the typical metro school declined.

Cohort-to-cohort variance is high — interpret the headline cautiously.

Learning rate: +4.6 proficiency points/yr (95% CI -15.1 to 24.2)

Low confidence

Cohort 2015201620172018201920232024 Slope
ELA · started 3rd in 2015
G3
204
—
ELA · started 3rd in 2016
G3
266
G5
243
-11.6
ELA · started 3rd in 2017
G3
224
G4
263
G5
240
+7.9
ELA · started 3rd in 2018
G3
257
G4
251
-5.6
ELA · started 3rd in 2019
G3
225
—
ELA · started 5th in 2024
G5
167
—
ELA · started 3rd in 2023
G3
175
G4
221
+45.4
ELA · started 3rd in 2024
G3
125
—
Math · started 3rd in 2015
G3
248
—
Math · started 3rd in 2016
G3
279
G5
238
-20.6
Math · started 3rd in 2017
G3
247
G4
272
G5
201
-23.0
Math · started 3rd in 2018
G3
237
G4
255
+17.3
Math · started 3rd in 2019
G3
204
—
Math · started 5th in 2024
G5
149
—
Math · started 3rd in 2023
G3
175
G4
216
+40.5
Math · started 3rd in 2024
G3
130
—

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. Its reliability shows up on the page as the confidence label and the rank interval, not as a standalone statistic.

SES index components

SES method
Blended SES index (ACS + FRL)
SES index value
18.5
FRL %
65.2%
ELL %
7.7% · WA OSPI Report Card Enrollment
SPED %
19.5% · WA OSPI Report Card Enrollment
Tract median income (ACS 5-year)
$60,298
Tract poverty rate
21.8%
Tract % bachelor's+
17.9%

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
2023–24 school year
NCES CCD vintage
2023
Census ACS 5-year vintage
2020-2024
Last updated
September 4, 2026
Methodology version
0.14.0
Source files (3)

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