State writing rubrics
Illinois Grades 3–8 6 official rubrics

Illinois IAR writing rubrics, in one place.

The six official Illinois Assessment of Readiness (IAR) ELA writing rubrics from the Illinois State Board of Education, covering the Prose Constructed Response items (Research Simulation Task, Literary Analysis Task, and Narrative Task) across grades 3, 4 to 5, and 6 to 8. Every score point, every construct, every descriptor extracted verbatim from the ISBE-published PARCC-derived scoring guides.

Verified against isbe.net Last updated May 2026
01 About IAR

Illinois's state writing assessment, rubric by rubric

IAR (Illinois Assessment of Readiness) is the state's summative ELA and mathematics assessment for grades 3 to 8. The writing component is delivered through Prose Constructed Response (PCR) items embedded in three task types, the Research Simulation Task (RST), the Literary Analysis Task (LAT), and the Narrative Writing Task (NT).

IAR adopted the PARCC scoring framework when Illinois transitioned from PARCC administration in 2019. The same six rubrics published by ISBE are applicable to PARCC administrations from 2015 through 2018 as well. The construct framework, score-point language, and rule that the reading dimension is not scored for narratives all carry over.

Every IAR rubric is scored on two constructs. RST and LAT share a combined Reading Comprehension and Written Expression construct, which folds analysis, organization, evidence use, and style into a single trait. NT drops the reading dimension because reading is not scored for elicited narrative stories. All PCRs add a Knowledge of Language and Conventions construct on a tighter scale. Total possible points vary by grade band, the Reading Comprehension and Written Expression construct uses 0 to 3 at grade 3 and 0 to 4 at grades 4 to 8.

02 The rubrics

The six Illinois IAR writing rubrics

IAR uses the same construct framework PARCC originated. Every Prose Constructed Response (PCR) is scored on two constructs. Research Simulation Task (RST) and Literary Analysis Task (LAT) share a combined Reading Comprehension and Written Expression construct. The Narrative Task (NT) drops the reading dimension because reading is not scored for elicited narrative stories. All PCRs add a Knowledge of Language and Conventions construct on a tighter scale.

Grade 3
Research Simulation Task and Literary Analysis Task
IAR Research Simulation and Literary Analysis Rubric, Grade 3

Grade 3 students read a passage (or passages) and write a prose response that demonstrates comprehension and effective written expression. Scored on Reading Comprehension and Written Expression (0 to 3) and Knowledge of Language and Conventions (0 to 3).

Reading Comprehension and Written ExpressionKnowledge of Language and Conventions
View full rubric PDF
Grade 3
Narrative Writing Task
IAR Narrative Writing Task Rubric, Grade 3

Grade 3 students develop a narrative with appropriate narrative elements. Scored on Written Expression (0 to 3) and Knowledge of Language and Conventions (0 to 3). The reading dimension is not scored for elicited narrative stories.

Written ExpressionKnowledge of Language and Conventions
View full rubric PDF
Grades 4–5
Research Simulation Task and Literary Analysis Task
IAR Research Simulation and Literary Analysis Rubric, Grades 4–5

Grades 4 and 5 students analyze the source text and write a prose response. Scored on Reading Comprehension and Written Expression (0 to 4) and Knowledge of Language and Conventions (0 to 3).

Reading Comprehension and Written ExpressionKnowledge of Language and Conventions
View full rubric PDF
Grades 4–5
Narrative Task
IAR Narrative Task Rubric, Grades 4–5

Grades 4 and 5 students develop a narrative using grade-appropriate narrative elements. Scored on Written Expression (0 to 3) and Knowledge of Language and Conventions (0 to 3).

Written ExpressionKnowledge of Language and Conventions
View full rubric PDF
Grades 6–8
Research Simulation Task and Literary Analysis Task
IAR Research Simulation and Literary Analysis Rubric, Grades 6–8

Grades 6 to 8 students develop a claim or topic using text-based evidence and an effective style. Scored on Reading Comprehension and Written Expression (0 to 4) and Knowledge of Language and Conventions (0 to 3).

Reading Comprehension and Written ExpressionKnowledge of Language and Conventions
View full rubric PDF
Grades 6–8
Narrative Task
IAR Narrative Task Rubric, Grades 6–8

Grades 6 to 8 students develop a narrative with grade-appropriate narrative elements and an effective style. Scored on Written Expression (0 to 4) and Knowledge of Language and Conventions (0 to 3).

Written ExpressionKnowledge of Language and Conventions
View full rubric PDF
03 Scoring

How IAR scores writing

Every IAR writing rubric scores responses on two constructs. The first construct (Reading Comprehension and Written Expression on RST and LAT, or Written Expression alone on Narrative) describes the substance of the response, comprehension, development, organization, evidence, and clarity. The second construct (Knowledge of Language and Conventions) covers command of standard English conventions and is scored on a tighter scale.

01
Reading Comprehension and Written Expression

Scored 0 to 3 at grade 3 and 0 to 4 at grades 4 to 8 for RST and LAT. The descriptors fold five elements into one construct, comprehension accuracy, appropriateness to task and audience, reasoning supported by text-based evidence, organization and coherence, and use of language to clarify ideas. At grades 6 to 8, an effective style is added to the construct.

02
Written Expression (Narrative only)

Scored 0 to 3 at grade 3 and grades 4 to 5, and 0 to 4 at grades 6 to 8. Narrative responses are scored on the development of narrative elements (establishing a situation, sequencing events, describing scenes and people, developing characters, using dialogue), organization and coherence, and use of language. The reading dimension is not scored for elicited narrative stories.

03
Knowledge of Language and Conventions

Scored 0 to 3 across every IAR rubric. Covers mechanics, grammar, and usage at an appropriate level of complexity. Top score allows a few minor errors as long as meaning is clear; bottom score covers frequent and varied errors that impede understanding.

Scale 2 constructs per rubric
Total possible 6 to 7 pts per PCR (varies by grade)
Type Analytic
04 FAQ

Common questions about Illinois IAR writing

What is the IAR writing rubric?
It is the official Illinois State Board of Education rubric for scoring Prose Constructed Response (PCR) items on the Illinois Assessment of Readiness ELA test. IAR uses six PCR rubrics across three task types (Research Simulation, Literary Analysis, Narrative) and three grade bands (3, 4 to 5, 6 to 8). The construct framework was inherited from PARCC and remains in use for the IAR.
How many constructs does each IAR rubric score?
Two. The first construct is either Reading Comprehension and Written Expression (on RST and LAT) or Written Expression alone (on Narrative). The second construct is Knowledge of Language and Conventions. Reading is not scored on Narrative because reading is not scored for elicited narrative stories.
How are IAR points distributed across grade bands?
At grade 3, both constructs are scored 0 to 3 for a maximum of 6 points per PCR. At grades 4 to 5, RST and LAT are scored 0 to 4 on Reading Comprehension and Written Expression and 0 to 3 on Knowledge of Language and Conventions (maximum 7), while Narrative is scored 0 to 3 on both (maximum 6). At grades 6 to 8, RST, LAT, and NT all use the 0 to 4 plus 0 to 3 split for a maximum of 7 points per PCR.
How is the IAR Narrative Task different from RST and LAT?
Narrative does not score reading comprehension. The first construct on Narrative is Written Expression alone, focused on narrative element development, organization, and language use. RST and LAT combine reading comprehension and written expression into a single construct because students are responding to source texts and the analysis of those texts is part of the scored work.
Is IAR the same as PARCC?
Illinois adopted the PARCC assessment from 2015 through 2018, then transitioned to the Illinois Assessment of Readiness in 2019. The IAR uses the same PCR rubric framework PARCC used. The ISBE document is explicit that the rubrics apply to IAR for 2019 and to PARCC administrations 2015 through 2018.
Is this rubric the official version from ISBE?
Yes. The descriptor language on this page is extracted verbatim from the official ISBE Scoring Rubric for Prose Constructed Response Items document. We do not edit, paraphrase, or interpret the criteria.
Where can I find the source document?
The official IAR scoring rubrics are published by the Illinois State Board of Education at isbe.net on the PARCC and IAR reference page.
Does EnlightenAI auto-score with these rubrics?
Yes. EnlightenAI's scoring engine uses the official IAR rubrics. Teachers calibrate against a handful of their own scored samples before deploying to students, and per-construct feedback is generated automatically.

Score Illinois IAR writing in EnlightenAI

Train EnlightenAI on any of the six official IAR Prose Constructed Response rubrics and start scoring student writing, with consistent per-construct feedback, in a single class period.