BOISTFORT ONLINE SCHOOL
Curtis, WA · Grades 3–12
Centralia, WA
VirtualDecoded Rank
All factors combined
WA statewide rating — the rank below is this school's statewide position
Middle 40% decoded
Insufficient data for a comparable rank
Washington schools
Achievement Rank
Raw test performance
Bottom 30% achievement
Insufficient data for a comparable rank
Washington schools
Typical Profile
Scores look modest, and the school performs below what its context predicts.
Low data confidence — interpret these rankings carefully. Small samples or low participation reduce how strongly the data supports the result.
Data confidence:Low40 students tested 1 year88% 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: #1025 of 1502
in Washington schools
Raw test scores rank this school #1141, but after accounting for context, students here outperform what the data would predict. The Decoded Rank places it at #1025.
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?
- About 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.
| Component | Weight | Percentile | Contribution |
|---|---|---|---|
| Performs above what its context predicts | 39% | 0 | -19.4 |
| Students gain ground year over year | 33% | 56 | +1.9 |
| Equity within the school | 17% | 97 | +7.8 |
| Most students were tested | 11% | 88 | +4.3 |
Note: this school's Alpha-only Decoded Rank is #27 (vs the composite #1025). The composite includes equity-within and other signals that diverge from the context-adjusted Alpha. See methodology.
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.
Science
2024 proficiency18.2%meeting standard
Tested gradeGrade 8
Tested count unavailable
202418.2%
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.
| Scope | Achievement | Decoded | Shift |
|---|---|---|---|
| WA (1502 schools) | #1141 | #1025 | |
| Centralia, WA (27 schools) | #21 | #18 | |
| Among similar schools (6 peers) | #1 | #1 |
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
- 240
- Free/reduced-price lunch
- 1.3%
- Locale
- Rural, distant
- School type
- Regular public school
- Enrollment model
- Virtual school
- Neighborhood median income
- $88,179ACS tract proxy
- Neighborhood poverty
- 7.3%ACS tract proxy
- SES index
- 58.5
- Assessment data year
- 2024
- CCD year
- 2023
- ACS vintage
- 2020-2024
High School Outcomes
Latest available dataGraduation 2024
Context-adjusted
Achievement vs. demographic expectation
Bottom tier
Achievement
Raw test performance
Middle of the pool
This is context-adjusted achievement (Alpha) — how grade 10–11 scores compare to expectations from the school's demographics. It is not the growth-based composite shown for elementary and middle schools, because a single-tested-grade high school has no consecutive-grade cohort to measure growth from.
Subject performance
Annual share of the tested high-school grade meeting or exceeding the state standard. Science is descriptive and is not included in the ELA + math HS Decoded Rank.
ELA
2024 proficiency38.7%meeting standard
Tested gradeGrade 10
40 tested
202438.7%
Science
2024 proficiency22.9%meeting standard
Tested gradeGrade 11
59 tested
202422.9%
- Graduation
- 67%
- 2024 cohort
Data confidence: Low— tested-student count, years of data, and participation for the high-school grades
Data limitations
- Graduation uses state cohort data. Coursework, offerings, and SAT/ACT counts use the latest available federal CRDC extracts, which can lag current graduation data.
- SAT/ACT data is count-only in this extract; without an enrollment denominator, we do not treat it as a participation rate.
- HS Decoded Rank is alpha-only: it summarizes how the school's grade 10/11 test scores compare to expectations from its demographic context, ranked against other HSs in the same metro / state / rural cohort. Graduation, AP, and SAT/ACT data above are descriptive context — they are not yet blended into the composite rank. The achievement-vs-decoded quadrant below plots context-adjusted ACHIEVEMENT (alpha) against raw achievement; it is NOT the growth-based composite shown for elementary and middle schools, because a single-tested-grade high school has no consecutive-grade cohort ladder from which to build a growth signal.
Within Boistfort 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 standard32%
- Level 2 — Approaching standard38%
- Level 3 — Meets standard (proficient)24%
- 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.
- Boistfort Elem0.0 mi
- Adna Middle/High School6.6 mi
- Adna Elementary School7.0 mi
- Pe Ell School8.1 mi
- Trojan Alternative School8.1 mi
| School | Rating | Achievement | Decoded | Shift | Story | Confidence |
|---|---|---|---|---|---|---|
| Boistfort Elem | #20 | #7 | Typical Profile | Low | ||
| Adna Middle/High School | #14 | #24Also HS #9 | Typical Profile | High | ||
| Adna Elementary School | #1 | #3 | ★Strong by Both Measures | High | ||
| Pe Ell School | #18 | #11Also HS #1 | Typical Profile | High | ||
| Trojan Alternative School | Rankings coming soon | |||||
Similar Schools
Schools with comparable demographics, income, and size. Both rank columns shown for direct comparison.
| School | Rating | Achievement | Decoded | Shift | Story | Confidence |
|---|---|---|---|---|---|---|
| Cottage Lake Elementary | #144 | #175 | Typical Profile | High | ||
| Cascade Public Schools | #104 | #105HS | HS outcome | HS pool | ||
| Bellevue Digital Discovery | — | #280 | Est. #326 | Typical Profile | Low | |
| Edmonds Elementary | #237 | #105 | ★★Outperforming Expectations | Medium | ||
| Arrowhead Elementary | #168 | #395 | High Scores, Context Matters | High |
Historical Ranks
Year-by-year decoded and achievement ranks. Pandemic-affected years are excluded — we don't interpolate scores across the gap.
| Year | Achievement | Decoded | Shift |
|---|---|---|---|
| 2024 | #21 | #18 |
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.
Not enough years yet
Trajectory will appear once we have two or more years of rankings for this school.
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.
Growth / Learning Rate
Not published by Washington.
Growth measures year-over-year progress for the same students tracked across grades — it needs longitudinal student-level records that the state has but doesn't release at the school level. Some states (CA, ID, TN) do publish this; Washington doesn't.
For this school, SchoolDecoder shows multi-year context another way: the Historical Ranks section below tracks how the school's Decoded Rank has moved over the years we have data for, and the Subject Rankings above break out math vs. ELA performance per grade. Both are cross-sectional, not the same as growth, but together they cover most of what a parent would use growth data for.
Student Growth (Washington)
Student growth percentile: the typical student here grew faster than 51% of Washington students with similar score histories.
Median Student Growth Percentile (SGP), as published by Washington's Office of Superintendent of Public Instruction. 50 is exactly typical for the state. Based on 1 year of data.
| Year | Math SGP | ELA SGP | Students (math / ELA) |
|---|---|---|---|
| 2024 | 51 | 52 | 43 / 42 |
How this works: a Student Growth Percentile compares a student's score change to other Washington students who started at a similar place, so it measures growth independent of where a student began. We show Washington's published medians; Oregon does not publish student growth percentiles, so this panel never appears on Oregon schools. See the methodology page for how growth enters the Decoded Rank.
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
- 58.5
- FRL %
- 1.3%
- ELL %
- 9.9% · WA OSPI Report Card Enrollment
- SPED %
- 7.4% · WA OSPI Report Card Enrollment
- Tract median income (ACS 5-year)
- $88,179
- Tract poverty rate
- 7.3%
- Tract % bachelor's+
- 18.3%
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.