Student Growth Model (SGM) End-of-Grade Results

Student growth percentiles on Georgia Milestones grades 4-8 tests by school, district, grade, and subject, 2015-2023.

Source: Georgia Insights (GaDOE) — Georgia Student Growth Model on End-of-Grade Milestones assessments
Year coverage: 2015–2023
Updated: annual
Version: 1.0.0
Schema hash: b96869f8e00f

Detail levels available

StateDistrictSchool · default

Overview

Georgia Student Growth Model (GSGM / SGP) on End-of-Grade (EOG) Milestones assessments. Each row is a (year x detail_level x geography x subject x grade) cohort's growth-related measures: Median Student Growth Percentile (1-99 ordinal), share of students at or above Typical growth (SGP >= 35), and (in 2023 only) a three-bucket SGP split (Low < 35, Typical 35-65, High > 65). 2015-2019 also report achievement-level percentages (Proficient / Developing Learner and above) on the underlying EOG assessment. Data covers reporting years 2015, 2016, 2017, 2018, 2019, and 2023. No GSGM was reported during COVID years 2020-2022. 2015-2016 report four subjects (ELA, Math, Science, Social Studies); 2017-2019 report only ELA + Math; 2023 reports only ELA + Math.

Row grain: One row per year, district_code, school_code, grade_level, subject.

Key metric

sgp_median — SGP Median (percentile, 1–99)

The single headline value most answers want.

JSON schema →Data contract (YAML) →

Variables

Every column in the fact table. The code is the exact field name the API returns.

Column	Type	Unit	Range	Null?	Description
`year`Year	integer	—	—	no	Ending calendar year of the school year (spring year). E.g., 2017 = school year 2016-2017. Data published years are 2015, 2016, 2017, 2018, 2019, 2023. Full description▾ Ending calendar year of the school year (spring year). E.g., 2017 = school year 2016-2017. Data published years are 2015, 2016, 2017, 2018, 2019, 2023.
`district_code`District Code	string	—	—	yes	3-digit GOSA district/system code (FK to districts dimension). 7-digit charter / state-school codes are preserved in full; 2015-2017 school-level rows published under the bare charter SYSTEM codes 782/783 are promoted to the 7-digit campus code (system + school code) used by 2018+ files. NULL for state-level rows. Full description▾ 3-digit GOSA district/system code (FK to districts dimension). 7-digit charter / state-school codes are preserved in full; 2015-2017 school-level rows published under the bare charter SYSTEM codes 782/783 are promoted to the 7-digit campus code (system + school code) used by 2018+ files. NULL for state-level rows. Joins districts; adds its label columns.
`school_code`School Code	string	—	—	yes	4-digit GOSA school code (FK to schools dimension, composite with district_code). NULL for district- and state-level rows. Full description▾ 4-digit GOSA school code (FK to schools dimension, composite with district_code). NULL for district- and state-level rows. Joins schools; adds its label columns.
`grade_level`Grade Level	string	—	—	no	Grade tested, 04 through 08 (grade 3 has no prior score for growth); 'all' is the across-grades aggregate. Full description▾ Grade level as a zero-padded 2-char string categorical, matching the rest of the per-grade education topics. Per-grade rows carry `"04"`-`"08"` (EOG SGP is only reported for grades 4-8 because an SGP requires a prior-year score, and grade 3 is the first tested grade). The published AllGrades aggregate (2015-2019 only) is preserved as `"all"` because its `sgp_median` cannot be reconstructed from the per-grade medians — analogous to the `"all"` value used in the `demographic` column for cross-demographic aggregates. 2023 has no AllGrades row in bronze. 6 allowed values▾ `all — total / aggregate` `04` `05` `06` `07` `08`
`subject`Subject	string	—	—	no	The content area tested (english_language_arts, mathematics, science, social_studies). Full description▾ Snake-case subject label. 2015-2016 report four subjects (english_language_arts, mathematics, science, social_studies); 2017+ reports only english_language_arts and mathematics. 4 allowed values▾ `english_language_arts` `mathematics` `science` `social_studies`
`num_tested`Number Tested	integer	count	—	yes	Number of students who took the EOG assessment. NULL in 2023 (Era 6 does not report this column — see bronze-data-structure.md §Era 6). Full description▾ Number of students who took the EOG assessment. NULL in 2023 (Era 6 does not report this column — see bronze-data-structure.md §Era 6).
`num_sgp_received`Number SGP Received	integer	count	—	yes	Number of students with enough prior-year scores to receive a Student Growth Percentile (subset of num_tested in 2015-2019; the only count metric reported in 2023). Full description▾ Number of students with enough prior-year scores to receive a Student Growth Percentile (subset of num_tested in 2015-2019; the only count metric reported in 2023).
`sgp_received_rate`SGP Received Rate	number	proportion	—	yes	Share of tested students who received an SGP (num_sgp_received / num_tested). 0-1 decimal scale. NULL in 2023 (not reported). Full description▾ Share of tested students who received an SGP (num_sgp_received / num_tested). 0-1 decimal scale. NULL in 2023 (not reported).
`sgp_median`SGP Median	number	percentile	1–99	yes	Median student growth percentile (1-99); 50 is average growth, higher means faster growth than similar peers. Full description▾ Median Student Growth Percentile on the 1-99 ordinal scale (the true SGP domain — there is no 0 or 100 SGP, so the range guard is tightened from the percentile default [0, 100] to [1, 99]). NOT converted to 0-1 — it's a percentile rank, preserved verbatim per data-cleaning-standards §4. Statewide median is 50 by construction. Values can be `.5` halves (e.g., 44.5). NULL on empty-cohort rows (num_sgp_received == 0): a median is undefined with no students, and bronze's sentinel 0 there is outside the valid 1-99 scale, so it is nulled rather than carried (which is why the tightened [1, 99] guard holds). The mask is recorded in the transform manifest (masked_values).
`pct_proficient_learner_or_above`Percent Proficient Learner or Above	number	proportion	—	yes	Share of students at the Proficient Learner achievement level or higher on the EOG assessment (0-1 scale; bronze / 100). NULL in 2023 (metric dropped). Full description▾ Share of students at the Proficient Learner achievement level or higher on the EOG assessment (0-1 scale; bronze / 100). NULL in 2023 (metric dropped).
`pct_developing_learner_or_above`Percent Developing Learner or Above	number	proportion	—	yes	Share of students at the Developing Learner achievement level or higher on the EOG assessment (0-1 scale; bronze / 100). NULL in 2023 (metric dropped). Full description▾ Share of students at the Developing Learner achievement level or higher on the EOG assessment (0-1 scale; bronze / 100). NULL in 2023 (metric dropped).
`pct_sgp_typical_or_high_growth`Percent SGP Typical or High Growth	number	proportion	—	yes	Share of SGP-scored students with SGP >= 35 (Typical or High growth). 0-1 scale. NULL in 2023 — Era 6 replaced this with the three-bucket SGP split below. Full description▾ Share of SGP-scored students with SGP >= 35 (Typical or High growth). 0-1 scale. NULL in 2023 — Era 6 replaced this with the three-bucket SGP split below.
`pct_sgp_low_growth`Percent SGP Low Growth	number	proportion	—	yes	Share of SGP-scored students in the Low Growth band (SGP < 35). 0-1 scale. Era 6 (2023) only; NULL for 2015-2019. Full description▾ Share of SGP-scored students in the Low Growth band (SGP < 35). 0-1 scale. Era 6 (2023) only; NULL for 2015-2019.
`pct_sgp_typical_growth`Percent SGP Typical Growth	number	proportion	—	yes	Share of SGP-scored students in the Typical Growth band (35 <= SGP <= 65). 0-1 scale. Era 6 only; NULL for 2015-2019. NOT the same as pct_sgp_typical_or_high_growth — Era 1-5's `% Typical or High` lumps typical and high together (SGP >= 35). Full description▾ Share of SGP-scored students in the Typical Growth band (35 <= SGP <= 65). 0-1 scale. Era 6 only; NULL for 2015-2019. NOT the same as pct_sgp_typical_or_high_growth — Era 1-5's `% Typical or High` lumps typical and high together (SGP >= 35).
`pct_sgp_high_growth`Percent SGP High Growth	number	proportion	—	yes	Share of SGP-scored students in the High Growth band (SGP > 65). 0-1 scale. Era 6 only; NULL for 2015-2019. Full description▾ Share of SGP-scored students in the High Growth band (SGP > 65). 0-1 scale. Era 6 only; NULL for 2015-2019.

Filters

Query parameters the fact endpoint accepts. Comma-separated values are OR within a parameter; multiple parameters AND together.

Parameter	Kind	Allowed values	Notes
`year`	year_exact	any value	—
`year_min`	year_range	any value	—
`year_max`	year_range	any value	—
`detail`	detail	`districtsschoolsstates`	enum-enforced, default: schools
`district_code`	foreign_key	any value	multi-value
`school_code`	foreign_key	any value	multi-value
`grade_level`	categorical	`all0405060708`	multi-value, enum-enforced
`subject`	categorical	`english_language_artsmathematicssciencesocial_studies`	multi-value, enum-enforced, pick one
`district_type`	dimension_attribute	7 allowed values▾ `commission_charter` `resa` `standard` `state_agency` `state_charter` `state_school` `state_special`	multi-value, enum-enforced

Example requests

Run these against the base URL — they return live data.

All rows (first page), schools level

curl "https://georgiacivicdata.org/api/v1/education/georgia_student_growth_model_end_of_grade"

schools data for 2023

curl "https://georgiacivicdata.org/api/v1/education/georgia_student_growth_model_end_of_grade?year=2023"

Filtered to grade_level = 04 for 2023

curl "https://georgiacivicdata.org/api/v1/education/georgia_student_growth_model_end_of_grade?year=2023&grade_level=04"

One district (code 601), 2023

curl "https://georgiacivicdata.org/api/v1/education/georgia_student_growth_model_end_of_grade?district_code=601&year=2023&detail=districts"

Download 2023 as CSV

curl "https://georgiacivicdata.org/api/v1/education/georgia_student_growth_model_end_of_grade?year=2023&format=csv"

Notes & limitations

NULL handling

Suppressed cells (too few students to report) are NULL, never zero.
Zero is a real, reported value.

Limitations

Suppressed cells are NULL (not zero). State rows have NULL district_code and school_code. District rows have NULL school_code.