Understanding iReady Domain Scores

iReady assesses multiple domains in reading and mathematics

The iReady assessment measures students’ performance and progress in certain foundational skills for reading and mathematics, known as “domains.” The domains tested by the iReady assessment are defined below. Students receive questions in six (6) domains for reading and four (4) domains for mathematics. More information is available about the use of iReady as a universal screener in Fairfax County Public Schools. 

Reading Domains Assessed by iReady

Domain  Number Domain Name Description of the Skill Measured How This Skills Helps Students as Readers
1 Phonological Awareness Understanding that a spoken word contains distinct sounds Being able to distinguish the individual sounds in spoken words helps students connect sounds to written words.
2 Phonics Understanding of the relationships between the sounds of spoken language and the letters of written language Being able to make these connections quickly and easily helps students make sense of what they are reading.
3 High-Frequency Words Recognition of words that appear often in the books that children read Being able to recognize these words automatically helps students read quickly and easily, which helps them make sense of what they are reading.
4 Vocabulary Understanding the meaning of words Knowing the meaning of many words allows students to reach a deeper understanding of the message being communicated through writing.
5 Comprehension of Literature Understanding of what is being read in fictional text Being able to recognize the sequence of events, the characters, and other elements of a story, poem, or play helps students navigate increasingly complicated texts.
6 Comprehension of Informational Text Understanding of what is being read in nonfiction text Being able to recognize the main idea, supporting details, and other elements of nonfiction helps students effectively use informational resources they encounter in the real world

Mathematics Domains Assessed by iReady

Domain  Number Domain Name Description of the Skill Measured How This Skills Helps Students as Mathematicians
1 Numbers and Operations Mathematics skills often thought of as arithmetic Having a solid understanding of the values that numbers represent and being able to work with numbers to accurately calculate increases, reductions, and parts provides a solid foundation for more complex mathematical thinking.
2 Algebra and Algebraic Thinking Ability to see number patterns and to use symbols to represent and solve problems Being able to apply algebraic thinking allows a student to make sense of a question and find a logical solution.
3 Measurement and Data Ability to collect, organize, and interpret numerical information Being able to apply measurement and data skills helps a student make sense of complex numerical information.
4 Geometry Ability to recognize and analyze two- and three-dimensional shapes Being able to apply geometry skills helps a student develop spatial reasoning and understand how real life objects relate to one another

View the iReady score report