Screen and intervene with mCLASS DIBELS 8th Edition.

Did you know mCLASS® DIBELS® 8th Edition is the industry’s first all-in-one universal and dyslexia screener? This means with just one screener, you’ll gain a complete picture of your students’ grade-level reading abilities and dyslexia risk factors. Our gold-standard assessment identifies students who need more support, then recommends targeted instruction they’ll love.

The right measures at the right time

With mCLASS DIBELS 8th Edition, you’ll assess students based on grade-specific curriculum and instructional standards, in accordance with International Dyslexia Association (IDA) guidelines.

mCLASS DIBELS 8th Edition offers one-minute, easy-to-administer measures of processing speed, phonological awareness, alphabetic principle, and word reading.

DIBELS® 8th Edition subtest alignment with IDA Guidelines
Dyslexia Screening AreamCLASS DIBELS 8th Edition MeasureGrade KGrade 1Grade 2Grade 3Grade 4–6
Rapid naming abilityLetter Naming Fluency (LNF)
Phonological awarenessPhoneme Segmentation Fluency (PSF)
Alphabetic principleNonsense Word Fluency (NWF)
Word readingWord Reading Fluency (WRF)
Word readingOral Reading Fluency (ORF)
ComprehensionMaze

Validated as a universal screener and a dyslexia screener

Strong reliability and validity evidence shows that DIBELS 8th Edition can effectively assess students in key skills linked to both dyslexia and broader reading difficulty. The research supporting DIBELS 8th Edition, conducted by the University of Oregon, is rigorous, meets high technical standards, and empowers educators to make well-informed decisions.

Read the DIBELS 8th Edition Dyslexia White Paper.

A complete system for data-based decision making

Illustration of a student assessment cycle showing steps: Assess skills, Identify risk, Provide instruction, Progress monitor, and Adjust instruction, with images and sample data for each step.

mCLASS DIBELS 8th Edition provides rich data that helps you make informed instructional decisions and seek out further dyslexia screening evaluation if needed:

  1. Assess skills: mCLASS DIBELS 8th Edition and optional dyslexia screenings in Rapid Automatized Naming (RAN), Spelling, Vocabulary, and Oral Language accurately assess students’ abilities.
  2. Identify risk: The DIBELS 8 composite score shows each student’s risk level, with ‘Well Below Benchmark’ indicating a need for intensive support. Students who are also ‘Well Below Benchmark’ in RAN and/or Spelling have an additional Risk Indicator icon next to their name.
  3. Provide instruction: The mCLASS Instruction feature analyzes student error patterns to key dyslexia-related subtests, then recommends small groups and explicit, multi-sensory activities for reinforcing skills.
  4. Progress monitor: mCLASS includes progress-monitoring measures to track student growth in letter sounds, alphabetic principle, word reading, oral reading fluency, and comprehension, so that informed instructional decisions can be made.
  5. Adapt instruction: mCLASS displays indicators based on progress monitoring performance that indicate when a change in instruction may be needed. It also updates instruction recommendations using the latest data.

Differentiated literacy instruction

mCLASS DIBELS 8th Edition lays the groundwork for a strong Multi-Tiered System of Supports (MTSS).

In addition to identifying students with symptoms of dyslexia, mCLASS DIBELS 8th Edition data recommends early intervention, personalized instruction, and core instruction within Amplify’s early literacy suite. Based on the Science of Reading, Amplify’s early literacy suite programs follow an explicit and systematic structure, build knowledge, and instruct on all of the foundational skills essential to literacy development.

Diagram showcasing

Bilingual dyslexia screening

By assessing with mCLASS DIBELS 8th Edition and its Spanish counterpart, mCLASS Lectura, you’ll know with confidence whether a student truly shows signs of dyslexia or is experiencing difficulties learning a new language.

When used together, mCLASS DIBELS 8th Edition and mCLASS Lectura feature a Dual Language Report that analyzes dyslexia screening results in both languages. The report also details how each student can leverage their strengths from one language to support growth in the other.

Student named Marisol Mejía is shown with her English and Spanish literacy scores. English scores are mostly Well Below and Below benchmark; Spanish scores are mostly at Benchmark except for one below.

Optional screening measures at no extra cost

Your mCLASS DIBELS 8th Edition program includes optional measures in vocabulary, spelling, RAN, and language comprehension that can be added flexibly to meet your specific instructional goals or requirements for dyslexia screening. These measures are available in English and Spanish and offered at no additional cost.

English MeasureSpanish MeasureDescriptionGrade Level
VocabularyVocabularioMeasures knowledge of grade-specific words and deriving meaning from texts.K–3
Encoding (Spelling)OrtografíaMeasures spelling skills for grade-specific words.K–3
RAN (Numbers)–Measures how quickly students can name numeric symbols aloud.K–3
Oral languageLenguaje oralStudents are asked to repeat sentences verbatim while the assessor notes errors.K–2

Dyslexia resources for families

Families play a crucial role in helping children overcome reading challenges. mCLASS DIBELS 8th Edition and mCLASS Lectura provide a Home Connect letter after each dyslexia screening to explain the results in family-friendly language, recommend activities, and direct families to a free website for additional at-home support.

A woman helps a young girl work on a computer in a classroom setting. Both are smiling and focused on the screen. Background has soft shapes in yellow and blue.

Developmentally appropriate

Computer-based assessments that require students to complete tasks silently or independently may over-identify students for intervention services, especially young learners who are still developing focus and attention abilities.

mCLASS requires students to actively demonstrate their proficiency in producing letter sounds, forming words, and reading texts. This approach to assessment aligns with IDA guidelines for effective screening of reading challenges. By choosing mCLASS for dyslexia screening, you’ll gain accurate information about a student’s risk for dyslexia, and gain the capability to monitor every student’s path to reading proficiency.

Additional resources