← All proof trees · ROWEN SCHOOL

1. 1
   What you seePVAAS growth — ELA/Literature

   50.00

   the state's PVAAS growth index for English/literature — whether the school's students grew as much as expected (the state's value-added score, on its own scale).

   vs. peers

   2th percentile

   vs. citywide

   1th percentile

   unit

   index (publisher's scale)

   direction

   higher is better

2. 2
   How it was computedvalue = the state's published percentage for the school × subgroup, as-is

   1. Read the state's wide-format datafile: one row per Pennsylvania school, one column per measure × subgroup (e.g. PercentPersistentAttendance_Black).
   2. Keep Philadelphia rows by mapping the state's AUN + Schl codes to the district's ULCS code through the Master School List.
   3. Unpivot each recognized measure × subgroup column into one served cell; state suppression codes ('IS', '--', '*') are stored as suppressed.

   Citywide percentile, reconstructed right now

   Among 259 default-included schools with a value for this metric, year, and subgroup, this school has a higher value than 0 and ties 7. Midrank rule: (0 + 7/2) / (259 − 1) = 0.014.Stored: 0.014. ✓ matches

   How percentiles are computed · How peer groups are chosen

   Peer percentile, reconstructed right now

   Peer group: up to 40 of the demographically nearest schools among Elementary / catchment / district schools; 33 of 40 peers have a value this year. This school is above 0 and ties 1 of them. Midrank: (0 + 1/2) / (34 − 1) = 0.015; stored 0.015. ✓ matches

   The peers and their values (33)

   Peer school	Value
   STEPHEN GIRARD SCHOOL	100.00
   JOHN B. KELLY SCHOOL	98.00
   RICHARD WRIGHT SCHOOL	98.00
   KENNEDY C. CROSSAN SCHOOL	89.00
   JOHN H. WEBSTER SCHOOL	87.00
   J. HAMPTON MOORE SCHOOL	84.00
   PRINCE HALL SCHOOL	83.00
   HENRY W. LAWTON SCHOOL	83.00
   RICHMOND SCHOOL	81.00
   ELLWOOD SCHOOL	81.00
   FELTONVILLE INTERMEDIATE	80.00
   RHAWNHURST SCHOOL	79.00
   HOWE ACADEMICS PLUS SCHOOL	79.00
   JAMES LOGAN SCHOOL	78.00
   ANNE FRANK SCHOOL	78.00
   JAMES R. LOWELL SCHOOL	77.00
   ELEANOR C. EMLEN SCHOOL	77.00
   THOMAS M. PEIRCE SCHOOL	76.00
   JAMES J. SULLIVAN SCHOOL	76.00
   GLORIA CASAREZ ELEMENTARY SCHOOL	76.00
   LAURA H. CARNELL SCHOOL	75.00
   THOMAS G. MORTON SCHOOL	75.00
   SAMUEL POWEL SCHOOL	75.00
   FRANCES E. WILLARD SCHOOL	74.00
   ALEXANDER MCCLURE SCHOOL	73.00
   JOHN MARSHALL SCHOOL	73.00
   CAYUGA SCHOOL	72.00
   JOSEPH PENNELL ELEMENTARY	70.00
   JOHN M. PATTERSON SCHOOL	70.00
   SOLOMON SOLIS-COHEN SCHOOL	69.00
   EDWIN FORREST SCHOOL	67.00
   JOSEPH W. CATHARINE SCHOOL	66.00
   FOX CHASE SCHOOL	50.00

   Note: stored percentiles are computed by a batch script after loads; a difference from the live reconstruction means a newer load changed the comparison set and the batch has not been re-run.

   Evidence: metric tree: PVAAS growth — ELA/Literature

3. 3
   The stored cellThe stored cell

   table

   philly_school_year_metrics

   value

   50

   denominator

   null (not published)

   suppressed

   false

   citywide_percentile

   0.0136

   comparison_group_percentile

   0.0152

   source_load_id

   2fdcb9ea-d4af-4a48-a7cf-a8e6166696b3

   Evidence: data model overview

4. 4
   The load that wrote itWritten on 2026-09-08 by futurereadypa_performance.ts

   source id

   futurereadypa_performance_2023-24

   file URL

   https://futurereadypa.org/home/getdatafile?id=49

   SHA-256 of the file read

   89219f7a7ffbc6adc14f54e87f2872ab04ce12a9e0749c448cf54998e4930e90Copy hash

   bytes

   4,861,549

   year covered

   2023-24

   code commit

   c19ea6ec845c65bcc40eb49644be1c7e67b05f25

   To confirm you have the same file: download it from the URL above, then run shasum -a 256 <downloaded file> Copy command — the output should equal the hash above. If the publisher has since replaced the file, the hashes will differ, which is itself useful to know.

   Evidence: loader script · first-fetch findings for this file · source registry

5. 5
   The publisher's fileFuture Ready PA Index datafile, 2023-24

   Pennsylvania Department of Education (Future Ready PA Index). Same structure as the 2024-25 file.

   format

   XLSX (wide)

   join key

   AUN + Schl → ULCS

   landing page

   https://futurereadypa.org/Home/DataFiles

   • Same as 2024-25.
6. 6
   How it was checkedChecks: 0 passed, 1 not run

   • ○ not runBase case against the state file not yet run for this metric (the loader is shared with keystone_algebra_proficiency, whose SDP-side base case passed)
7. 7
   Assumptions & caveatsAssumptions and caveats

   • The state's AUN + Schl → ULCS mapping from the 2024-25 Master School List is correct. State rows for schools not in that directory — district schools that closed before 2024-25 — are not loaded, so every year of state data is a survivor-only panel; cyber charters have their own AUNs and are outside the district's directory.
   • Where two directory schools share a state code (a school and its Continuation Academy), the state's single row belongs to the main school (deterministic rule; the full absenteeism QA lists every shared code).

   • The state publishes no student counts for most measures, so served cells carry no denominator.

   Algorithms involved: Reading the state's wide-format datafile, Citywide and peer-group percentiles, Peer groups: 40 nearest neighbors on demographics